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CVE-2026-63279

Out of bounds read in PICT image import

MEDIUM
5.4
CVSS Score
Published: September 22, 2026 at 11:10 AM UTC
Updated: September 22, 2026 at 07:21 PM UTC
1 product affected across 1 vendorLibreOffice

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

LibreOffice can import PICT images, which may be embedded in documents. An out of bounds read existed when importing an image that uses a colour palette. The palette index held in the image data was used without being checked against the number of entries the palette has, so an index past the last entry read memory outside the palette. In fixed versions the palette index is limited to the entries present.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

LibreOffice· Document
60%
26.2 ≤ v < < 26.2.526.2
Affected range stops below < 26.2.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://www.libreoffice.org/about-us/security/advisories/cve-2026-63279

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMDocument Fdn.
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-125

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