CVE-2026-6040

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-06-15. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

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

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.

CVSS v3
7.3
EG Score
7.3(high)
EPSS
1.7%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

Security advisories — LibreOffice

https://www.libreoffice.org/about-us/security/advisories/cve-2026-6040

Vendor Advisories for CVE-2026-6040(1)

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

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 82× 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 00:23 UTCEG score recompute
  2. 2026-07-07 00:23 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 01:12 UTCEG score recompute
  8. 2026-07-06 01:12 UTCGHSA enrichment
  9. 2026-07-05 12:02 UTCEG score recompute
  10. 2026-07-05 12:02 UTCGHSA enrichment
  11. 2026-07-05 02:31 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-04 23:04 UTCEG score recompute
  14. 2026-07-04 23:04 UTCGHSA enrichment
  15. 2026-07-04 10:05 UTCEG score recompute
  16. 2026-07-04 10:05 UTCGHSA enrichment
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-03 14:18 UTCEG score recompute
  20. 2026-07-03 14:18 UTCGHSA enrichment
  21. 2026-07-03 00:46 UTCEG score recompute
  22. 2026-07-03 00:46 UTCGHSA enrichment
  23. 2026-07-02 11:48 UTCEG score recompute
  24. 2026-07-02 11:48 UTCGHSA enrichment
  25. 2026-07-01 22:44 UTCEG score recompute
Show 57 more
  1. 2026-07-01 22:44 UTCGHSA enrichment
  2. 2026-07-01 15:07 UTCEPSS rescore
  3. 2026-07-01 09:18 UTCEG score recompute
  4. 2026-07-01 09:18 UTCGHSA enrichment
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-30 20:20 UTCEG score recompute▲ 1.90
  7. 2026-06-30 20:20 UTCGHSA enrichment
  8. 2026-06-30 04:33 UTCNVD updateCVSS v3 → 7.3 · severity → HIGH
  9. 2026-06-29 20:21 UTCEG score recompute
  10. 2026-06-29 20:21 UTCGHSA enrichment
  11. 2026-06-29 14:06 UTCEPSS rescore
  12. 2026-06-28 20:22 UTCEG score recompute
  13. 2026-06-28 20:22 UTCGHSA enrichment
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-27 20:23 UTCEG score recompute
  16. 2026-06-27 20:23 UTCGHSA enrichment
  17. 2026-06-27 03:08 UTCEPSS rescore
  18. 2026-06-26 20:24 UTCEG score recompute
  19. 2026-06-26 20:24 UTCGHSA enrichment
  20. 2026-06-25 20:26 UTCEG score recompute
  21. 2026-06-25 20:26 UTCGHSA enrichment
  22. 2026-06-25 13:50 UTCEPSS rescore
  23. 2026-06-24 20:27 UTCEG score recompute
  24. 2026-06-24 20:27 UTCGHSA enrichment
  25. 2026-06-24 14:05 UTCEPSS rescore
  26. 2026-06-23 21:33 UTCEPSS rescore
  27. 2026-06-23 21:33 UTCEPSS rescore
  28. 2026-06-23 18:25 UTCEG score recompute
  29. 2026-06-23 18:25 UTCGHSA enrichment
  30. 2026-06-22 18:26 UTCEG score recompute
  31. 2026-06-22 18:26 UTCGHSA enrichment
  32. 2026-06-22 14:25 UTCEPSS rescore
  33. 2026-06-22 14:25 UTCEPSS rescore
  34. 2026-06-21 18:26 UTCEG score recompute
  35. 2026-06-21 18:26 UTCGHSA enrichment
  36. 2026-06-21 14:56 UTCEPSS rescore
  37. 2026-06-21 14:56 UTCEPSS rescore
  38. 2026-06-21 01:59 UTCEPSS rescore
  39. 2026-06-21 01:59 UTCEPSS rescore
  40. 2026-06-20 18:25 UTCEG score recompute
  41. 2026-06-20 18:25 UTCGHSA enrichment
  42. 2026-06-19 19:26 UTCEPSS rescore
  43. 2026-06-19 19:26 UTCEPSS rescore
  44. 2026-06-19 18:17 UTCEG score recompute
  45. 2026-06-19 18:17 UTCGHSA enrichment
  46. 2026-06-18 18:16 UTCEG score recompute
  47. 2026-06-18 18:16 UTCGHSA enrichment
  48. 2026-06-18 17:52 UTCEPSS rescore
  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-17 17:58 UTCEG score recompute
  51. 2026-06-17 17:58 UTCGHSA enrichment
  52. 2026-06-17 17:53 UTCEPSS rescore
  53. 2026-06-16 17:56 UTCEG score recompute
  54. 2026-06-16 17:56 UTCGHSA enrichment
  55. 2026-06-16 17:53 UTCEPSS rescore
  56. 2026-06-15 17:54 UTCEG score recompute
  57. 2026-06-15 17:53 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6040?
CVE-2026-6040 is a high vulnerability published on June 15, 2026. A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed…
When was CVE-2026-6040 disclosed?
CVE-2026-6040 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6040 actively exploited?
CVE-2026-6040 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6040?
CVE-2026-6040 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-6040?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6040, 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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