Dnsmasq before 2.66test2, when used with certain libvirt configurations, replies to…
Priority LOW 28CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Dnsmasq before 2.66test2, when used with certain libvirt configurations, replies to queries from prohibited interfaces, which allows remote attackers to cause a denial of service (traffic amplification) via spoofed TCP based DNS queries. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3411.
Why it matters now
EPSS 0.02795 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed 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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* | up to 2.65 | Vulnerable | Thekelleys |
- cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* Versions up to 2.65 Vulnerable ·Thekelleys
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2013-0198
- 2026-10-03 Alias added: GHSA-3pxx-76hx-4rw2
References
Advisory 3
More Thekelleys Dnsmasq vulnerabilities
- TI-2017-10595 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.0CRITICAL 9.8
- TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
- TI-2017-10596 Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.0CRITICAL 9.8
- TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
- TI-2021-20958 Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from… CVSS 3.1CRITICAL 9.8
- TI-2020-15697 Heap-based buffer overflow in dnsmasq CVSS 3.1HIGH 8.1
Sources
- CVE-2013-0198 · CVE Program
- CVE-2013-0198 · NVD
- FIRST EPSS
- GHSA-3pxx-76hx-4rw2 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-0198 · 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