CVE-2026-11999

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 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: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra whose application calls X509_verify_cert() with caller-supplied untrusted intermediates; for those users it is critical, otherwise the library is unaffected. Native wolfSSL TLS/DTLS usage is not impacted. X509_verify_cert() returned success based only on the last verified link rather than on reaching a trust anchor: when the supplied chain is deeper than the verifier's maximum path depth (default 100), path building runs out of depth while still walking untrusted intermediates and the chain is accepted even though it never reaches a configured trust anchor, allowing acceptance of an attacker-controlled certificate. The default TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only applications doing manual or deferred verification through this API are.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
4.1%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Patch available. Sources: github_pr.
generic Patch Available

wolfSSL Security Vulnerabilities | Documentation - wolfSSL

https://www.wolfssl.com/docs/security-vulnerabilities/
github_pr

Fixes for OpenSSL compatibility layer

Fix merged in wolfSSL/wolfssl PR #10674 on 2026-06-12 — awaiting tagged release

https://github.com/wolfSSL/wolfssl/pull/10674

Vendor Advisories for CVE-2026-11999(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 33× in last 7d / 59× 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 23:57 UTCEG score recompute
  2. 2026-07-06 23:57 UTCGHSA enrichment
  3. 2026-07-06 11:18 UTCEG score recompute
  4. 2026-07-06 11:18 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 22:36 UTCEG score recompute
  7. 2026-07-05 22:36 UTCGHSA enrichment
  8. 2026-07-05 09:57 UTCEG score recompute
  9. 2026-07-05 09:57 UTCGHSA enrichment
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-04 21:19 UTCEG score recompute
  13. 2026-07-04 21:19 UTCGHSA enrichment
  14. 2026-07-04 08:39 UTCEG score recompute
  15. 2026-07-04 08:39 UTCGHSA enrichment
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-03 20:00 UTCEG score recompute
  18. 2026-07-03 20:00 UTCGHSA enrichment
  19. 2026-07-03 07:21 UTCEG score recompute
  20. 2026-07-03 07:21 UTCGHSA enrichment
  21. 2026-07-02 18:42 UTCEG score recompute
  22. 2026-07-02 18:42 UTCGHSA enrichment
  23. 2026-07-02 06:04 UTCEG score recompute
  24. 2026-07-02 06:03 UTCGHSA enrichment
  25. 2026-07-01 17:24 UTCEG score recompute
Show 34 more
  1. 2026-07-01 17:24 UTCGHSA enrichment
  2. 2026-07-01 15:06 UTCEPSS rescore
  3. 2026-07-01 15:06 UTCEPSS rescore
  4. 2026-07-01 04:46 UTCEG score recompute
  5. 2026-07-01 04:46 UTCGHSA enrichment
  6. 2026-06-30 23:22 UTCEPSS rescore
  7. 2026-06-30 16:04 UTCEG score recompute
  8. 2026-06-30 16:04 UTCGHSA enrichment
  9. 2026-06-30 03:26 UTCEG score recompute
  10. 2026-06-30 03:26 UTCGHSA enrichment
  11. 2026-06-29 14:48 UTCEG score recompute
  12. 2026-06-29 14:48 UTCGHSA enrichment
  13. 2026-06-29 02:09 UTCEG score recompute
  14. 2026-06-29 02:09 UTCGHSA enrichment
  15. 2026-06-28 14:07 UTCEPSS rescore
  16. 2026-06-28 13:30 UTCEG score recompute
  17. 2026-06-28 13:30 UTCGHSA enrichment
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-28 00:52 UTCEG score recompute
  21. 2026-06-28 00:52 UTCGHSA enrichment
  22. 2026-06-27 12:14 UTCEG score recompute
  23. 2026-06-27 12:14 UTCGHSA enrichment
  24. 2026-06-27 03:08 UTCEPSS rescore
  25. 2026-06-26 23:35 UTCEG score recompute▼ 0.70
  26. 2026-06-26 23:35 UTCGHSA enrichment
  27. 2026-06-26 17:41 UTCNVD updateCVSS v3 → 7.5
  28. 2026-06-26 10:57 UTCEG score recompute
  29. 2026-06-26 10:57 UTCGHSA enrichment
  30. 2026-06-25 19:50 UTCEG score recompute▲ 8.20
  31. 2026-06-25 19:50 UTCGHSA enrichment
  32. 2026-06-25 19:49 UTCNVD updateCVSS v3 → 8.2 · CVSS v4 → 8.2
  33. 2026-06-25 18:46 UTCEG score recompute
  34. 2026-06-25 18:46 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-11999?
CVE-2026-11999 is a high vulnerability published on June 25, 2026. X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier (wolfSSLX509verifycert()). This affects only builds with --enable-opensslextra whose application calls X509verifycert() with caller-supplied untrusted intermediates; for those users it is critical,…
When was CVE-2026-11999 disclosed?
CVE-2026-11999 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11999 actively exploited?
CVE-2026-11999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11999?
CVE-2026-11999 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-11999?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11999, 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

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