NTP before 4.2.8p9 rate limits responses received from the configured sources when rate…
Priority MEDIUM 47CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 16 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.
Why it matters now
EPSS 0.12367 96th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 16 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 91
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | 4.2.6 to before 4.2.8; 4.3.0 to before 4.3.94 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p203:*:*:*:*:*:* | 4.2.5 p203 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p204:*:*:*:*:*:* | 4.2.5 p204 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p205:*:*:*:*:*:* | 4.2.5 p205 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p206:*:*:*:*:*:* | 4.2.5 p206 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p207:*:*:*:*:*:* | 4.2.5 p207 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p208:*:*:*:*:*:* | 4.2.5 p208 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p209:*:*:*:*:*:* | 4.2.5 p209 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p210:*:*:*:*:*:* | 4.2.5 p210 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p211:*:*:*:*:*:* | 4.2.5 p211 | Vulnerable | NTP Project |
- cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* Versions 4.2.6 to before 4.2.8; 4.3.0 to before 4.3.94 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p203:*:*:*:*:*:* Versions 4.2.5 p203 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p204:*:*:*:*:*:* Versions 4.2.5 p204 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p205:*:*:*:*:*:* Versions 4.2.5 p205 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p206:*:*:*:*:*:* Versions 4.2.5 p206 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p207:*:*:*:*:*:* Versions 4.2.5 p207 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p208:*:*:*:*:*:* Versions 4.2.5 p208 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p209:*:*:*:*:*:* Versions 4.2.5 p209 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p210:*:*:*:*:*:* Versions 4.2.5 p210 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p211:*:*:*:*:*:* Versions 4.2.5 p211 Vulnerable ·NTP Project
Show 81 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ntp:ntp:4.2.5:p212:*:*:*:*:*:* | 4.2.5 p212 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p213:*:*:*:*:*:* | 4.2.5 p213 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p214:*:*:*:*:*:* | 4.2.5 p214 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p215:*:*:*:*:*:* | 4.2.5 p215 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p216:*:*:*:*:*:* | 4.2.5 p216 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p217:*:*:*:*:*:* | 4.2.5 p217 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p218:*:*:*:*:*:* | 4.2.5 p218 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p219:*:*:*:*:*:* | 4.2.5 p219 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p220:*:*:*:*:*:* | 4.2.5 p220 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p221:*:*:*:*:*:* | 4.2.5 p221 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p222:*:*:*:*:*:* | 4.2.5 p222 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p223:*:*:*:*:*:* | 4.2.5 p223 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p224:*:*:*:*:*:* | 4.2.5 p224 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p225:*:*:*:*:*:* | 4.2.5 p225 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p226:*:*:*:*:*:* | 4.2.5 p226 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p227:*:*:*:*:*:* | 4.2.5 p227 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p228:*:*:*:*:*:* | 4.2.5 p228 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p229:*:*:*:*:*:* | 4.2.5 p229 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p230:*:*:*:*:*:* | 4.2.5 p230 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p231_rc1:*:*:*:*:*:* | 4.2.5 p231_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p232_rc1:*:*:*:*:*:* | 4.2.5 p232_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p233_rc1:*:*:*:*:*:* | 4.2.5 p233_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p234_rc1:*:*:*:*:*:* | 4.2.5 p234_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p235_rc1:*:*:*:*:*:* | 4.2.5 p235_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p236_rc1:*:*:*:*:*:* | 4.2.5 p236_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p237_rc1:*:*:*:*:*:* | 4.2.5 p237_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p238_rc1:*:*:*:*:*:* | 4.2.5 p238_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p239_rc1:*:*:*:*:*:* | 4.2.5 p239_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p240_rc1:*:*:*:*:*:* | 4.2.5 p240_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p241_rc1:*:*:*:*:*:* | 4.2.5 p241_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p242_rc1:*:*:*:*:*:* | 4.2.5 p242_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p243_rc1:*:*:*:*:*:* | 4.2.5 p243_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p244_rc1:*:*:*:*:*:* | 4.2.5 p244_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p245_rc1:*:*:*:*:*:* | 4.2.5 p245_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p246_rc1:*:*:*:*:*:* | 4.2.5 p246_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p247_rc1:*:*:*:*:*:* | 4.2.5 p247_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p248_rc1:*:*:*:*:*:* | 4.2.5 p248_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p249_rc1:*:*:*:*:*:* | 4.2.5 p249_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.5:p250_rc1:*:*:*:*:*:* | 4.2.5 p250_rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:* | 4.2.8 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:* | 4.2.8 p1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:* | 4.2.8 p1-beta1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:* | 4.2.8 p1-beta2 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:* | 4.2.8 p1-beta3 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:* | 4.2.8 p1-beta4 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:* | 4.2.8 p1-beta5 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:* | 4.2.8 p1-rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:* | 4.2.8 p1-rc2 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:* | 4.2.8 p2 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:* | 4.2.8 p2-rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:* | 4.2.8 p2-rc2 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:* | 4.2.8 p2-rc3 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:* | 4.2.8 p3 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:* | 4.2.8 p3-rc1 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:* | 4.2.8 p3-rc2 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:* | 4.2.8 p3-rc3 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:* | 4.2.8 p4 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:* | 4.2.8 p5 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:* | 4.2.8 p6 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p7:*:*:*:*:*:* | 4.2.8 p7 | Vulnerable | NTP Project |
| cpe:2.3:a:ntp:ntp:4.2.8:p8:*:*:*:*:*:* | 4.2.8 p8 | Vulnerable | NTP Project |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* | 7.5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* | 7.3 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* | 7.6 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* | 7.7 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:hpe:hpux-ntp:*:*:*:*:*:*:*:* | b.11.31 to before c.4.2.8.2.0 | Vulnerable | Hewlett Packard Enterprise (HPE) |
- cpe:2.3:a:ntp:ntp:4.2.5:p212:*:*:*:*:*:* Versions 4.2.5 p212 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p213:*:*:*:*:*:* Versions 4.2.5 p213 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p214:*:*:*:*:*:* Versions 4.2.5 p214 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p215:*:*:*:*:*:* Versions 4.2.5 p215 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p216:*:*:*:*:*:* Versions 4.2.5 p216 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p217:*:*:*:*:*:* Versions 4.2.5 p217 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p218:*:*:*:*:*:* Versions 4.2.5 p218 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p219:*:*:*:*:*:* Versions 4.2.5 p219 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p220:*:*:*:*:*:* Versions 4.2.5 p220 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p221:*:*:*:*:*:* Versions 4.2.5 p221 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p222:*:*:*:*:*:* Versions 4.2.5 p222 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p223:*:*:*:*:*:* Versions 4.2.5 p223 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p224:*:*:*:*:*:* Versions 4.2.5 p224 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p225:*:*:*:*:*:* Versions 4.2.5 p225 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p226:*:*:*:*:*:* Versions 4.2.5 p226 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p227:*:*:*:*:*:* Versions 4.2.5 p227 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p228:*:*:*:*:*:* Versions 4.2.5 p228 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p229:*:*:*:*:*:* Versions 4.2.5 p229 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p230:*:*:*:*:*:* Versions 4.2.5 p230 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p231_rc1:*:*:*:*:*:* Versions 4.2.5 p231_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p232_rc1:*:*:*:*:*:* Versions 4.2.5 p232_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p233_rc1:*:*:*:*:*:* Versions 4.2.5 p233_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p234_rc1:*:*:*:*:*:* Versions 4.2.5 p234_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p235_rc1:*:*:*:*:*:* Versions 4.2.5 p235_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p236_rc1:*:*:*:*:*:* Versions 4.2.5 p236_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p237_rc1:*:*:*:*:*:* Versions 4.2.5 p237_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p238_rc1:*:*:*:*:*:* Versions 4.2.5 p238_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p239_rc1:*:*:*:*:*:* Versions 4.2.5 p239_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p240_rc1:*:*:*:*:*:* Versions 4.2.5 p240_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p241_rc1:*:*:*:*:*:* Versions 4.2.5 p241_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p242_rc1:*:*:*:*:*:* Versions 4.2.5 p242_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p243_rc1:*:*:*:*:*:* Versions 4.2.5 p243_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p244_rc1:*:*:*:*:*:* Versions 4.2.5 p244_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p245_rc1:*:*:*:*:*:* Versions 4.2.5 p245_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p246_rc1:*:*:*:*:*:* Versions 4.2.5 p246_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p247_rc1:*:*:*:*:*:* Versions 4.2.5 p247_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p248_rc1:*:*:*:*:*:* Versions 4.2.5 p248_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p249_rc1:*:*:*:*:*:* Versions 4.2.5 p249_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.5:p250_rc1:*:*:*:*:*:* Versions 4.2.5 p250_rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:* Versions 4.2.8 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:* Versions 4.2.8 p1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:* Versions 4.2.8 p1-beta1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:* Versions 4.2.8 p1-beta2 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:* Versions 4.2.8 p1-beta3 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:* Versions 4.2.8 p1-beta4 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:* Versions 4.2.8 p1-beta5 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:* Versions 4.2.8 p1-rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:* Versions 4.2.8 p1-rc2 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:* Versions 4.2.8 p2 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:* Versions 4.2.8 p2-rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:* Versions 4.2.8 p2-rc2 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:* Versions 4.2.8 p2-rc3 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:* Versions 4.2.8 p3 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:* Versions 4.2.8 p3-rc1 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:* Versions 4.2.8 p3-rc2 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:* Versions 4.2.8 p3-rc3 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p4:*:*:*:*:*:* Versions 4.2.8 p4 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p5:*:*:*:*:*:* Versions 4.2.8 p5 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:* Versions 4.2.8 p6 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p7:*:*:*:*:*:* Versions 4.2.8 p7 Vulnerable ·NTP Project
- cpe:2.3:a:ntp:ntp:4.2.8:p8:*:*:*:*:*:* Versions 4.2.8 p8 Vulnerable ·NTP Project
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:a:hpe:hpux-ntp:*:*:*:*:*:*:*:* Versions b.11.31 to before c.4.2.8.2.0 Vulnerable ·Hewlett Packard Enterprise (HPE)
Remediation
Red Hat 1 advisory
- RHSA-2017:0252 Released 2017-02-06 · Red Hat rating Moderatentp security update
- Red Hat Enterprise Linux Client (v. 7) ntp-4.2.6p5-25.el7_3.1, ntpdate-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux Client Optional (v. 7) ntp-doc-4.2.6p5-25.el7_3.1, ntp-perl-4.2.6p5-25.el7_3.1, sntp-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux ComputeNode (v. 7) ntp-4.2.6p5-25.el7_3.1, ntpdate-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) ntp-doc-4.2.6p5-25.el7_3.1, ntp-perl-4.2.6p5-25.el7_3.1, sntp-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux Desktop (v. 6) ntp-4.2.6p5-10.el6_8.2, ntpdate-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux Desktop Optional (v. 6) ntp-doc-4.2.6p5-10.el6_8.2, ntp-perl-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux HPC Node (v. 6) ntp-4.2.6p5-10.el6_8.2, ntpdate-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux HPC Node Optional (v. 6) ntp-doc-4.2.6p5-10.el6_8.2, ntp-perl-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux Server (v. 6) ntp-4.2.6p5-10.el6_8.2, ntpdate-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux Server (v. 7) ntp-4.2.6p5-25.el7_3.1, ntpdate-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux Server Optional (v. 6) ntp-doc-4.2.6p5-10.el6_8.2, ntp-perl-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux Server Optional (v. 7) ntp-doc-4.2.6p5-25.el7_3.1, ntp-perl-4.2.6p5-25.el7_3.1, sntp-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux Workstation (v. 6) ntp-4.2.6p5-10.el6_8.2, ntpdate-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux Workstation (v. 7) ntp-4.2.6p5-25.el7_3.1, ntpdate-4.2.6p5-25.el7_3.1
- Red Hat Enterprise Linux Workstation Optional (v. 6) ntp-doc-4.2.6p5-10.el6_8.2, ntp-perl-4.2.6p5-10.el6_8.2
- Red Hat Enterprise Linux Workstation Optional (v. 7) ntp-doc-4.2.6p5-25.el7_3.1, ntp-perl-4.2.6p5-25.el7_3.1, sntp-4.2.6p5-25.el7_3.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:0252 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:0252 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-7426
- 2026-10-03 Alias added: GHSA-8wjh-3x3g-6pjf
References
Advisory 9
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
- USN-3707-2
- RHSA-2017:0252
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
- http://nwtime.org/ntp428p9_release/
- VU#633847
- https://bto.bluecoat.com/security-advisory/sa139
- http://support.ntp.org/bin/view/Main/NtpBug3071
- FreeBSD-SA-16:39
Sources
- CVE-2016-7426 · CVE Program
- CVE-2016-7426 · NVD
- FIRST EPSS
- GHSA-8wjh-3x3g-6pjf · GitHub Advisory Database · CC BY 4.0
- CVE-2016-7426 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences