Quick answers
- Is CVE-2026-63279 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-63279 being exploited in the wild.
- How severe is CVE-2026-63279?
- Informational severity, published 22 September 2026.
- Which products and versions are affected?
- LibreOffice before 26.2.5.
- Is there a fix for CVE-2026-63279?
- A patch was published on 2026-09-22: LibreOffice 26.2.5 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-63279 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-63279?
- Check whether you run LibreOffice at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in PICT image import when a palette index is used without validation against the actual number of palette entries. An attacker can craft a PICT image embedded in a document where the palette index references memory beyond the palette array bounds, leaking adjacent memory contents. The fix validates the palette index against the palette size before use.
Affected products
- LibreOffice LibreOffice before 26.2.5
Timeline
- 2026-09-21: disclosed
- 2026-09-22: patched: LibreOffice 26.2.5