CVE-2026-25061: tcpflow has TIM Element OOB Write in wifipcap
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 handlebeacon() and related handlers. As of time of publication, no known patches are available.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-25061?
CVE-2026-25061 has a medium severity level due to the potential for an out-of-bounds write.
How do I fix CVE-2026-25061?
To remediate CVE-2026-25061, update tcpflow to version 1.62 or later.
What versions of tcpflow are affected by CVE-2026-25061?
CVE-2026-25061 affects tcpflow versions up to and including 1.61.
What type of vulnerability is CVE-2026-25061?
CVE-2026-25061 is an out-of-bounds write vulnerability caused by improper parsing in the wifipcap component.
What impact does CVE-2026-25061 have on my system?
Exploitation of CVE-2026-25061 could potentially lead to data corruption or system instability due to the out-of-bounds write.