Description
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_threads_list() function that allows remote attackers to trigger memory corruption by sending a valid qfThreadInfo response followed by a malformed qsThreadInfo response. Attackers can exploit this vulnerability through GDB remote debugging to cause a denial of service or potentially achieve code execution by manipulating thread list processing.
References (4)
Core 4
Core References
Issue Tracking issue-tracking
https://github.com/radareorg/radare2/issues/25835
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-threads-list
Issue Tracking issue-tracking
https://github.com/radareorg/radare2/issues/25836
Scores
CVSS v3
7.5
EPSS
0.0040
EPSS Percentile
60.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-416
Status
published
Products (3)
radare/radare2
< 6.1.4
radare2/radare2
6.1.5
radare2/radare2
c213ad6894a1eb9086ac8bf5fae35757e9e1683c
Published
May 15, 2026
Tracked Since
May 15, 2026