A flaw was found in dnsmasq.
A flaw was found in dnsmasq. After a reduction of internal domain-name buffer sizes, the DNSSEC validator can write a few bytes past a name buffer when converting names to and from DNS wire format. An attacker who can cause the server to validate a crafted DNSSEC response may overwrite a small amount of adjacent heap metadata. DNSSEC support is not compiled in by default and must also be enabled at runtime.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Red Hat
- Product
- Red Hat Ceph Storage 9, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6
- CVSS v3.1
- 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Exploitation
- SSVC none, automatable yes, impact partial
- Weakness
- CWE-787
- Exposure class
- Edge / VPN / firewall, Storage / NAS, Operating system
- NVD status
- Awaiting Analysis
Why it ranks 25 (Notable)
- CVSS v3.1 5.3 medium
- SSVC: automatable
- Exposed product class: edge / VPN / firewall, hypervisor
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-93011 on this site · NVD · CVE.org · Vulnpedia
Related coverage
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