ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1 allows…
Priority MEDIUM 57CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 9.11.0b1 allows primary DNS servers to cause a denial of service (secondary DNS server crash) via a large AXFR response, and possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response and allows remote authenticated users to cause a denial of service (primary DNS server crash) via a large UPDATE message.
Why it matters now
EPSS 0.40937 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
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 · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* | 9.0 – 9.9.8; 9.10.0 – 9.10.3 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.9.9:-:*:*:*:*:*:* | 9.9.9 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.9.9:beta1:*:*:*:*:*:* | 9.9.9 beta1 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.9.9:beta2:*:*:*:*:*:* | 9.9.9 beta2 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.9.9:p1:*:*:*:*:*:* | 9.9.9 p1 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.10.4:-:*:*:*:*:*:* | 9.10.4 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.10.4:p1:*:*:*:*:*:* | 9.10.4 p1 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.11.0:a1:*:*:*:*:*:* | 9.11.0 a1 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.11.0:a2:*:*:*:*:*:* | 9.11.0 a2 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.11.0:a3:*:*:*:*:*:* | 9.11.0 a3 | Vulnerable | ISC |
- cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* Versions 9.0 – 9.9.8; 9.10.0 – 9.10.3 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.9.9:-:*:*:*:*:*:* Versions 9.9.9 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.9.9:beta1:*:*:*:*:*:* Versions 9.9.9 beta1 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.9.9:beta2:*:*:*:*:*:* Versions 9.9.9 beta2 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.9.9:p1:*:*:*:*:*:* Versions 9.9.9 p1 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.10.4:-:*:*:*:*:*:* Versions 9.10.4 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.10.4:p1:*:*:*:*:*:* Versions 9.10.4 p1 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.11.0:a1:*:*:*:*:*:* Versions 9.11.0 a1 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.11.0:a2:*:*:*:*:*:* Versions 9.11.0 a2 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.11.0:a3:*:*:*:*:*:* Versions 9.11.0 a3 Vulnerable ·ISC
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isc:bind:9.11.0:b1:*:*:*:*:*:* | 9.11.0 b1 | Vulnerable | ISC |
| cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:a:isc:bind:9.11.0:b1:*:*:*:*:*:* Versions 9.11.0 b1 Vulnerable ·ISC
- cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. 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 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6170
- 2026-10-03 Alias added: GHSA-r98f-r8h7-rj5p
References
Advisory 7
- [dns-operations] 20160706 DNS activities in Japan
- [dns-operations] 20160706 DNS activities in Japan
- [oss-security] 20160706 Malicious primary DNS servers can crash secondaries
- [dns-operations] 20160704 DNS activities in Japan
- GLSA-201610-07
- https://kb.isc.org/article/AA-01390
- https://kb.isc.org/article/AA-01390/169/CVE-2016-6170
Sources
- CVE-2016-6170 · CVE Program
- CVE-2016-6170 · NVD
- FIRST EPSS
- GHSA-r98f-r8h7-rj5p · GitHub Advisory Database · CC BY 4.0
- CVE-2016-6170 · 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