CVE-2026-25061
tcpflow - security update
7.5
HIGH
CVSS 3.1
EPSS 0.08%
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.
How to fix CVE-2026-25061
To remediate CVE-2026-25061, upgrade the affected package to a fixed version below.
- —upgrade to 1.5.2+repack1-1+deb11u1 or later
- —upgrade to 1.5.2+repack1-1+deb11u1 or later
Is CVE-2026-25061 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.5.2+repack1-1+deb11u1
- from 0, < 1.5.2+repack1-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |