CVE-2026-6450

MEDIUMNVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory (severity: LOW) published 2026-06-25. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 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.

A CRL critical extension bypass exists in ParseCRL_Extensions where critical extensions are not properly enforced, allowing a crafted CRL with an unhandled critical extension to be accepted. This only affects builds with CRL support enabled and where a crafted CRL had a trusted signature when parsed.

CVSS v3
5.3
EG Score
5.3(high)
EPSS
7.7%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 27, 2026

Advisory Details (2)

Auto-updated Jun 27, 2026
Patch available. Sources: github_pr.
generic Patch Available

wolfSSL Security Vulnerabilities | Documentation - wolfSSL

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

reject crls with unrecognized critical extensions

Fix merged in wolfSSL/wolfssl PR #10239 on 2026-04-21 — awaiting tagged release

https://github.com/wolfSSL/wolfssl/pull/10239

Vendor Advisories for CVE-2026-6450(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 / 38× 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 16:27 UTCEPSS rescore
  3. 2026-07-06 14:37 UTCEG score recompute
  4. 2026-07-06 14:37 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 16:53 UTCEG score recompute
  8. 2026-07-05 16:53 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 19:11 UTCEG score recompute
  12. 2026-07-04 19:11 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 21:28 UTCEG score recompute
  16. 2026-07-03 21:28 UTCGHSA enrichment
  17. 2026-07-02 23:47 UTCEG score recompute
  18. 2026-07-02 23:46 UTCGHSA enrichment
  19. 2026-07-02 02:05 UTCEG score recompute
  20. 2026-07-02 02:04 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-07-01 04:22 UTCEG score recompute
  23. 2026-07-01 04:21 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 06:37 UTCEG score recompute
Show 13 more
  1. 2026-06-30 06:37 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-29 08:52 UTCEG score recompute▲ 4.30
  4. 2026-06-29 08:52 UTCGHSA enrichment
  5. 2026-06-28 14:07 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 19:41 UTCNVD updateCVSS v3 → 5.3 · severity → MEDIUM
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 15:45 UTCEG score recompute▲ 1.00
  10. 2026-06-26 15:44 UTCGHSA enrichment
  11. 2026-06-26 15:40 UTCNVD updateCVSS v3 → 1 · CVSS v4 → 1
  12. 2026-06-25 21:46 UTCEG score recompute
  13. 2026-06-25 21:46 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-6450?
CVE-2026-6450 is a medium vulnerability published on June 25, 2026. A CRL critical extension bypass exists in ParseCRL_Extensions where critical extensions are not properly enforced, allowing a crafted CRL with an unhandled critical extension to be accepted. This only affects builds with CRL support enabled and where a crafted CRL had a trusted signature when…
When was CVE-2026-6450 disclosed?
CVE-2026-6450 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6450 actively exploited?
CVE-2026-6450 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6450?
CVE-2026-6450 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-6450?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6450, 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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