Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server…
Priority LOW 36CWE-125Published · 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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.
Why it matters now
EPSS 0.01705 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed No fixed version in the sources yet
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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* | before 2.76 | Vulnerable | Thekelleys |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
- cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* Versions before 2.76 Vulnerable ·Thekelleys
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
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 Client (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | — |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | — |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | — |
Not affected: 8 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 13 (Queens)
- Red Hat OpenStack Platform 14 (Rocky)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2019-14513
- 2026-10-03 Alias added: GHSA-8x2j-2xxw-g7h5
References
Sources
- CVE-2019-14513 · CVE Program
- CVE-2019-14513 · NVD
- FIRST EPSS
- GHSA-8x2j-2xxw-g7h5 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-14513 · 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