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CVE record · CVE-2026-6040

Heap use-after-free in ODF number-format blank-width parsing

CVSS 5.4 MediumEPSS 0.0016 · 5th percentile

Published by the CVE Program (CNA: Document Fdn.) at 15 Jun 2026, 16:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
The Document Foundation LibreOffice
  • affected 25.8 to before < 25.8.7 25.8 series
  • affected 26.2 to before < 26.2.3 26.2 series
Other versions: unknown
Identifiers
CVE-2026-6040
CNA
Document Fdn.
Weakness (CWE)
CWE-416 · CWE-787 · CWE-825
Tags
Published
15 Jun 2026
Updated
23 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.4 Medium 4.0 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P CNA (Document Fdn.)Used for this record
7.3 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H ADP (redhat-SADP)
  • CISA KEV Not listed.
  • EPSS 0.0016, the 5th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 15 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.