CVE-2025-12771

HIGH

IBM Concert <2.1.0 - Buffer Overflow

Title source: llm
STIX 2.1

Description

IBM Concert 1.0.0 through 2.1.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local user could overflow the buffer and execute arbitrary code on the system.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7255549

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 0.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-119
Status published
Products (1)
ibm/concert 1.0.0 - 2.2.0
Published Dec 26, 2025
Tracked Since Feb 18, 2026