CVE-2026-25061 – tcpflow has TIM Element OOB Write in wifipcap

CVE ID : CVE-2026-25061

Published : Jan. 29, 2026, 10:15 p.m. | 54 minutes ago

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.

Severity: 5.5 | MEDIUM

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