CVE-2026-63274
mediumpriority · track · 0EPSS 0.002 · 9 %ileDEUSEPSS · scored 2026-10-27
LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the buffer holding it. In fixed versions the declared length is clamped to the bytes actually read.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3521LibreOffice: Mehrere SchwachstellenDeutsch2026-09-22csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in LibreOffice ausnutzen, um einen Denial of Service Angriff durchzuführen, Daten zu manipulieren oder Informationen offenzulegen.
- ZDI-26-782ZDI advisory ZDI-26-7822026-10-16vendor · zdiUS
sources
Which sources assert this record, and when.
references (1) nvd
External citations — patches, advisories, analysis.
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