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
- Last Updated
- 2026-09-25
- EPSS Score
- 0.16% (percentile: 4.2%)
Affected Products (4)
Other
- 21260-17084
- 21756-17084
- 21665-17084
- 21898-17084
Revision History
- 2026-08-25: Information published.
- 2026-09-07: Information published.
- 2026-09-23: Information published.
- 2026-09-24: Information published.
- 2026-09-25: Information published.