CVE-2026-60109

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-09. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRB_ERROR message with error-code 25 (KDC_ERR_PREAUTH_REQUIRED) containing a PA-DATA element with padata-type 2, 3, 11, or 19. Attackers can exploit a parser and analyzer state mismatch where proc_padata() dereferences an uninitialized pa_data_element field selected by the wrong parsing arm, triggering a crash via a single UDP or TCP packet to port 88 without any credentials or prior authentication.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
39.5%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jul 9, 2026
Patch available. Sources: github_release, github_commit.
generic

Zeek < 8.0.9 Null Pointer Dereference DoS via Kerberos KRB_ERROR Parsing | Advisories | VulnCheck

https://www.vulncheck.com/advisories/zeek-null-pointer-dereference-dos-via-kerberos-krb-error-parsing
github_commit Patch Available

commit c82e3c734893 (zeek/zeek)

Patch available: zeek/zeek v8.0.9 (contains commit c82e3c734893)

https://github.com/zeek/zeek/commit/c82e3c734893d932e94310aec0dbeb1ffcea169d
github_release Patch Available

v8.0.9

Patch available: zeek/zeek v8.0.9

https://github.com/zeek/zeek/releases/tag/v8.0.9

Vendor Advisories for CVE-2026-60109(1)

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 35× in last 7d / 35× 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. 2026-07-15 21:38 UTCEG score recompute
  2. 2026-07-15 21:37 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 09:00 UTCEG score recompute
  5. 2026-07-15 09:00 UTCGHSA enrichment
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-15 02:00 UTCEPSS rescore
  8. 2026-07-14 20:21 UTCEG score recompute
  9. 2026-07-14 20:21 UTCGHSA enrichment
  10. 2026-07-14 07:46 UTCEG score recompute
  11. 2026-07-14 07:46 UTCGHSA enrichment
  12. 2026-07-13 22:31 UTCEPSS rescore
  13. 2026-07-13 19:08 UTCEG score recompute
  14. 2026-07-13 19:08 UTCGHSA enrichment
  15. 2026-07-13 06:33 UTCEG score recompute
  16. 2026-07-13 06:32 UTCGHSA enrichment
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-13 06:13 UTCEPSS rescore
  19. 2026-07-12 17:56 UTCEG score recompute
  20. 2026-07-12 17:56 UTCGHSA enrichment
  21. 2026-07-12 05:46 UTCEPSS rescore
  22. 2026-07-12 05:21 UTCEG score recompute
  23. 2026-07-12 05:21 UTCGHSA enrichment
  24. 2026-07-11 16:46 UTCEG score recompute
  25. 2026-07-11 16:46 UTCGHSA enrichment
Show 10 more
  1. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-11 04:11 UTCEG score recompute
  4. 2026-07-11 04:11 UTCGHSA enrichment
  5. 2026-07-10 15:35 UTCEG score recompute
  6. 2026-07-10 15:34 UTCGHSA enrichment
  7. 2026-07-10 02:57 UTCEG score recompute
  8. 2026-07-10 02:57 UTCGHSA enrichment
  9. 2026-07-09 14:22 UTCEG score recompute
  10. 2026-07-09 14:20 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-60109?
CVE-2026-60109 is a high vulnerability published on July 9, 2026. Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRBERROR message with error-code 25 (KDCERRPREAUTHREQUIRED) containing a PA-DATA element with padata-type 2, 3,…
When was CVE-2026-60109 disclosed?
CVE-2026-60109 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-60109 actively exploited?
CVE-2026-60109 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-60109?
CVE-2026-60109 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-60109?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-60109, 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-2026-60109

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