Critical severity · published May 15, 2026
CVE-2026-8695
radare2 6.1.5 Use-After-Free via gdbr_threads_list()
9.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
radare2 · radare2
6.1.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8695
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8695
Patch
https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683c
Exploit
https://github.com/radareorg/radare2/issues/25835
Exploit
https://github.com/radareorg/radare2/issues/25836
Third Party Advisory
https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-threads-list
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