CVE-2026-6040

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM 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
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.3HIGHmedium confidence
EG Risk
33
EG Risk 33/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

Published

June 15, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
Patch available.
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.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuure-java (4:26.2.4.2-0ubuntu0.26.04.2) @ resolute2026-09-14ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libreoffice1:7.0.4-4 ... 4:7.6.4~rc1-1~bpo12+1 (402 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libreoffice4:25.2.3-2 ... 4:25.2.3-2+deb13u5~bpo12+1 (8 versions)
  • every version up to 4:25.2.3-2+deb13u5: fixed in 4:25.2.3-2+deb13u5
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libreoffice4:25.2.3-2 ... 4:26.2.3.2-2~bpo13+1 (51 versions)
  • every version up to 4:26.2.3.2-2: fixed in 4:26.2.3.2-2
—

Weakness Classification(3)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 23× 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.

Showing the most recent 100 of 279 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:13 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 17:56 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-28 13:52 UTCEPSS rescore
  12. 2026-09-27 13:48 UTCEPSS rescore
  13. 2026-09-26 15:59 UTCEPSS rescore
  14. 2026-09-23 17:54 UTCEPSS rescore
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-14 03:47 UTCEG score recompute
  20. 2026-09-14 03:47 UTCVendor advisory
  21. 2026-09-14 03:47 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 09:37 UTCEPSS rescore
  24. 2026-09-08 22:01 UTCEPSS rescore
  25. 2026-09-06 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-05 15:31 UTCEPSS rescore
  2. 2026-09-04 05:07 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-09-01 04:40 UTCEPSS rescore
  5. 2026-08-30 22:59 UTCEG score recompute
  6. 2026-08-30 22:59 UTCVendor advisory
  7. 2026-08-30 22:59 UTCGHSA enrichment
  8. 2026-08-30 19:17 UTCEPSS rescore
  9. 2026-08-28 21:42 UTCEPSS rescore
  10. 2026-08-26 14:47 UTCEPSS rescore
  11. 2026-08-25 13:49 UTCEPSS rescore
  12. 2026-08-24 23:38 UTCEG score recompute
  13. 2026-08-24 23:38 UTCVendor advisory
  14. 2026-08-24 23:38 UTCGHSA enrichment
  15. 2026-08-23 23:20 UTCVendor advisory
  16. 2026-08-23 23:19 UTCGHSA enrichment
  17. 2026-08-23 09:49 UTCEG score recompute
  18. 2026-08-23 09:49 UTCVendor advisory
  19. 2026-08-23 09:48 UTCGHSA enrichment
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-21 23:44 UTCVendor advisory
  22. 2026-08-21 23:44 UTCGHSA enrichment
  23. 2026-08-21 10:46 UTCEG score recompute
  24. 2026-08-21 10:46 UTCVendor advisory
  25. 2026-08-21 10:46 UTCGHSA enrichment
  26. 2026-08-20 22:56 UTCEPSS rescore
  27. 2026-08-20 21:39 UTCVendor advisory
  28. 2026-08-20 21:39 UTCGHSA enrichment
  29. 2026-08-20 08:41 UTCEG score recompute
  30. 2026-08-20 08:41 UTCVendor advisory
  31. 2026-08-20 08:41 UTCGHSA enrichment
  32. 2026-08-19 17:04 UTCEPSS rescore
  33. 2026-08-19 13:15 UTCEG score recompute
  34. 2026-08-19 13:15 UTCVendor advisory
  35. 2026-08-19 13:15 UTCGHSA enrichment
  36. 2026-08-18 13:49 UTCEPSS rescore
  37. 2026-08-18 13:49 UTCEPSS rescore
  38. 2026-08-17 13:47 UTCEPSS rescore
  39. 2026-08-17 11:26 UTCVendor advisory
  40. 2026-08-17 11:26 UTCGHSA enrichment
  41. 2026-08-16 22:29 UTCEG score recompute
  42. 2026-08-16 22:29 UTCVendor advisory
  43. 2026-08-16 22:29 UTCGHSA enrichment
  44. 2026-08-16 14:56 UTCEPSS rescore
  45. 2026-08-16 14:56 UTCEPSS rescore
  46. 2026-08-16 05:14 UTCEG score recompute
  47. 2026-08-16 05:14 UTCVendor advisory
  48. 2026-08-16 05:14 UTCGHSA enrichment
  49. 2026-08-16 02:15 UTCEPSS rescore
  50. 2026-08-15 16:17 UTCVendor advisory
  51. 2026-08-15 16:17 UTCGHSA enrichment
  52. 2026-08-15 03:19 UTCEG score recompute
  53. 2026-08-15 03:19 UTCVendor advisory
  54. 2026-08-15 03:19 UTCGHSA enrichment
  55. 2026-08-15 01:31 UTCEPSS rescore
  56. 2026-08-14 14:21 UTCVendor advisory
  57. 2026-08-14 14:21 UTCGHSA enrichment
  58. 2026-08-14 01:24 UTCEG score recompute
  59. 2026-08-14 01:24 UTCVendor advisory
  60. 2026-08-14 01:24 UTCGHSA enrichment
  61. 2026-08-13 22:00 UTCEPSS rescore
  62. 2026-08-13 12:26 UTCVendor advisory
  63. 2026-08-13 12:26 UTCGHSA enrichment
  64. 2026-08-12 23:28 UTCEG score recompute
  65. 2026-08-12 23:28 UTCVendor advisory
  66. 2026-08-12 23:28 UTCGHSA enrichment
  67. 2026-08-12 13:51 UTCEPSS rescore
  68. 2026-08-12 10:31 UTCVendor advisory
  69. 2026-08-12 10:31 UTCGHSA enrichment
  70. 2026-08-11 21:33 UTCEG score recompute
  71. 2026-08-11 21:33 UTCVendor advisory
  72. 2026-08-11 21:33 UTCGHSA enrichment
  73. 2026-08-11 08:36 UTCEG score recompute
  74. 2026-08-11 08:36 UTCVendor advisory
  75. 2026-08-11 08:36 UTCGHSA enrichment

Related CVEs(same product + same vendor + 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 on June 15, 2026, with the most recent update on July 23, 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 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-6040?
CVE-2026-6040 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-6040?
A fix for CVE-2026-6040 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-6040 are linked in the Vendor Advisories panel on this page.

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