CVE-2026-12969
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation
An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Enterprise Linux 10
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 10
- Platforms
- Unknown
- Default status
affected- Package
- dnsmasq
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 6
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 6
- Platforms
- Unknown
- Default status
unaffected- Package
- dnsmasq
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 7
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 7
- Platforms
- Unknown
- Default status
unaffected- Package
- dnsmasq
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 8
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8
- Platforms
- Unknown
- Default status
unaffected- Package
- dnsmasq
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 9
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 9
- Platforms
- Unknown
- Default status
unaffected- Package
- dnsmasq
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat OpenShift Container Platform 4
- Vendor
- Red Hat
- Product
- Red Hat OpenShift Container Platform 4
- Platforms
- Unknown
- Default status
unaffected- Package
- openshift/ose-rhel-coreos-8
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat OpenShift Container Platform 4
- Vendor
- Red Hat
- Product
- Red Hat OpenShift Container Platform 4
- Platforms
- Unknown
- Default status
unaffected- Package
- openshift/ose-rhel-coreos-9
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.