CVE-2026-63274
Heap buffer overflow in PDF import stream handling
- State
- Published
- Severity
- 5.4 Medium
- Published
- Sep 22, 2026
- Updated
- Sep 28, 2026
- Reserved
- Jul 16, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.4 Medium | 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 | Document Fdn. |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
LibreOfficeThe Document Foundation |
|
References
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