CVE-2026-12969

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-06-23. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
5.3
EG Score
5.3(high)
EPSS
16.3%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 23, 2026

Advisory Details (2)

Auto-updated Jun 23, 2026
Patch available. Sources: redhat.
redhat

2491663 – (CVE-2026-12969) CVE-2026-12969 dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation

https://bugzilla.redhat.com/show_bug.cgi?id=2491663
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-12969

Vendor Advisories for CVE-2026-12969(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 12:28 UTCEG score recompute
  3. 2026-07-06 12:28 UTCVendor advisory
  4. 2026-07-06 12:28 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 10:34 UTCEG score recompute
  7. 2026-07-05 10:34 UTCVendor advisory
  8. 2026-07-05 10:34 UTCGHSA enrichment
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 08:39 UTCEG score recompute
  12. 2026-07-04 08:39 UTCVendor advisory
  13. 2026-07-04 08:39 UTCGHSA enrichment
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 06:46 UTCEG score recompute
  16. 2026-07-03 06:46 UTCVendor advisory
  17. 2026-07-03 06:46 UTCGHSA enrichment
  18. 2026-07-02 04:52 UTCEG score recompute
  19. 2026-07-02 04:52 UTCVendor advisory
  20. 2026-07-02 04:52 UTCGHSA enrichment
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-07-01 15:06 UTCEPSS rescore
  23. 2026-07-01 02:59 UTCEG score recompute
  24. 2026-07-01 02:59 UTCVendor advisory
  25. 2026-07-01 02:59 UTCGHSA enrichment
Show 22 more
  1. 2026-06-30 23:22 UTCEPSS rescore
  2. 2026-06-30 01:06 UTCEG score recompute
  3. 2026-06-30 01:05 UTCGHSA enrichment
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-28 23:12 UTCEG score recompute
  6. 2026-06-28 23:12 UTCGHSA enrichment
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-27 21:19 UTCEG score recompute
  11. 2026-06-27 21:19 UTCGHSA enrichment
  12. 2026-06-27 03:08 UTCEPSS rescore
  13. 2026-06-26 19:26 UTCEG score recompute
  14. 2026-06-26 19:26 UTCGHSA enrichment
  15. 2026-06-25 17:33 UTCEG score recompute
  16. 2026-06-25 17:33 UTCGHSA enrichment
  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-24 15:39 UTCEG score recompute
  19. 2026-06-24 15:39 UTCGHSA enrichment
  20. 2026-06-24 14:05 UTCEPSS rescore
  21. 2026-06-23 13:46 UTCEG score recompute
  22. 2026-06-23 13:45 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-12969?
CVE-2026-12969 is a medium vulnerability published on June 23, 2026. An out-of-bounds read vulnerability exists in dnsmasq's findsoa() function in src/rfc1035.c. When parsing NS section records, extractname() 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…
When was CVE-2026-12969 disclosed?
CVE-2026-12969 was first published in the National Vulnerability Database on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12969 actively exploited?
CVE-2026-12969 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12969?
CVE-2026-12969 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-12969?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12969, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-12969

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