CVE-2026-6040
highpriority · track · 0EPSS 0.002 · 5 %ileDEEUEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.5–7.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1929LibreOffice: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2026-06-15csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in LibreOffice ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://www.libreoffice.org/about-us/security/advisories/cve-2026-6040cnnvd
- https://www.libreoffice.org/about-us/security/advisories/cve-2026-6040enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-6040nvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2488966nvd
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6040.jsonnvd
- https://www.libreoffice.org/about-us/security/advisories/cve-2026-6040nvd
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