CVE-2026-14241

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-30. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152.0.4.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
22.1%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Jul 1, 2026
No patch confirmed yet.
generic

Security Vulnerabilities fixed in Firefox 152.0.4 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-62/
generic

Access Denied

https://bugzilla.mozilla.org/show_bug.cgi?id=2046814
generic

Client Challenge

https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043241%2C2045514%2C2045576%2C2045623%2C2045765%2C2049409%2C2049840

Vendor Advisories for CVE-2026-14241(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 64× in last 7d / 64× 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. 2026-07-07 07:24 UTCEG score recompute
  2. 2026-07-07 07:24 UTCGHSA enrichment
  3. 2026-07-07 03:44 UTCEG score recompute
  4. 2026-07-07 03:44 UTCGHSA enrichment
  5. 2026-07-07 00:03 UTCEG score recompute
  6. 2026-07-07 00:02 UTCGHSA enrichment
  7. 2026-07-06 20:25 UTCEG score recompute
  8. 2026-07-06 20:25 UTCGHSA enrichment
  9. 2026-07-06 16:43 UTCEG score recompute
  10. 2026-07-06 16:43 UTCGHSA enrichment
  11. 2026-07-06 16:27 UTCEPSS rescore
  12. 2026-07-06 16:26 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  13. 2026-07-06 15:36 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  14. 2026-07-06 13:04 UTCEG score recompute
  15. 2026-07-06 13:04 UTCGHSA enrichment
  16. 2026-07-06 09:25 UTCEG score recompute
  17. 2026-07-06 09:25 UTCGHSA enrichment
  18. 2026-07-06 05:43 UTCEG score recompute
  19. 2026-07-06 05:43 UTCGHSA enrichment
  20. 2026-07-06 02:23 UTCEPSS rescore
  21. 2026-07-06 02:02 UTCEG score recompute
  22. 2026-07-06 02:02 UTCGHSA enrichment
  23. 2026-07-05 22:25 UTCEG score recompute
  24. 2026-07-05 22:25 UTCGHSA enrichment
  25. 2026-07-05 18:45 UTCEG score recompute
Show 39 more
  1. 2026-07-05 18:45 UTCGHSA enrichment
  2. 2026-07-05 15:08 UTCEG score recompute
  3. 2026-07-05 15:07 UTCGHSA enrichment
  4. 2026-07-05 11:30 UTCEG score recompute
  5. 2026-07-05 11:29 UTCGHSA enrichment
  6. 2026-07-05 07:51 UTCEG score recompute
  7. 2026-07-05 07:51 UTCGHSA enrichment
  8. 2026-07-05 04:14 UTCEG score recompute
  9. 2026-07-05 04:14 UTCGHSA enrichment
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-05 00:35 UTCEG score recompute
  13. 2026-07-05 00:35 UTCGHSA enrichment
  14. 2026-07-04 20:56 UTCEG score recompute
  15. 2026-07-04 20:56 UTCGHSA enrichment
  16. 2026-07-04 17:19 UTCEG score recompute
  17. 2026-07-04 17:18 UTCGHSA enrichment
  18. 2026-07-04 13:40 UTCEG score recompute
  19. 2026-07-04 13:40 UTCGHSA enrichment
  20. 2026-07-04 10:02 UTCEG score recompute
  21. 2026-07-04 10:02 UTCGHSA enrichment
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-04 06:23 UTCEG score recompute
  24. 2026-07-04 06:23 UTCGHSA enrichment
  25. 2026-07-04 02:43 UTCEG score recompute
  26. 2026-07-04 02:43 UTCGHSA enrichment
  27. 2026-07-03 23:03 UTCEG score recompute
  28. 2026-07-03 23:03 UTCGHSA enrichment
  29. 2026-07-03 19:24 UTCEG score recompute
  30. 2026-07-03 19:24 UTCGHSA enrichment
  31. 2026-07-03 15:46 UTCEG score recompute
  32. 2026-07-03 15:46 UTCGHSA enrichment
  33. 2026-07-03 12:09 UTCEG score recompute▲ 9.80
  34. 2026-07-03 12:09 UTCGHSA enrichment
  35. 2026-07-01 17:06 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  36. 2026-07-01 15:06 UTCEPSS rescore
  37. 2026-07-01 15:06 UTCEPSS rescore
  38. 2026-06-30 14:33 UTCEG score recompute
  39. 2026-06-30 14:32 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14241?
CVE-2026-14241 is a critical vulnerability published on June 30, 2026. Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152.0.4.
When was CVE-2026-14241 disclosed?
CVE-2026-14241 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14241 actively exploited?
CVE-2026-14241 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-14241?
CVE-2026-14241 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-14241?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14241, 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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