by Kastro
Paper/Archive/CVE-2026-8695

CVE-2026-8695

radare2 radare2 — radare2 6.1.5 Use-After-Free via gdbr_threads_list()

EPSS 0.6%public exploitCVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 50.0.500 × 2010.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
radare26.1.5–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

exploitgithub.com/radareorg/radare2/issues/25835patchgithub.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683cwriteupvulncheck.com/advisories/radare2-use-after-free-via-gdbr-threads-listrefgithub.com/radareorg/radare2/issues/25836