CVE-2026-72854: msgpack-c Integer Overflow in msgpack_unpacker_expand_buffer Causes a False-Success Undersized Reservation
Overview
- Severity
- Medium (CVSS 5.3)
- CVSS Vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Aug
- Released
- 2026-08-25
- EPSS Score
- 0.11% (percentile: 1.5%)
Affected Products (3)
Other
- 21260-17084
- 21756-17084
- 21665-17084
Revision History
- 2026-08-25: Information published.