High Severity Vulnerability
This vulnerability has been rated as High severity. Immediate action is recommended.
CVE-2026-25061
HighVulnerability Description
tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Known Affected Software
1 configuration(s) from 1 vendor(s)
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
CVE-2026-25061
CVE-2026-25061
References & Resources
Severity Details
Weakness Type (CWE)
Out-of-bounds Write
- Description
- The product writes data past the end, or before the beginning, of the intended buffer.
- Exploit Likelihood
- High
- Typical Severity
- High
- Abstraction Level
- Base
Key Information
- Published Date
- January 29, 2026
