CVE-2026-8695
critical
CVSS v3
9.8
CVSS v2
—
VIR risk
9.8
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.
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-8695
Vendor advisory: disclosure@vulncheck.com — https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683c
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | sid | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| radare | radare2 | {"endIncluding":"6.1.4"} | |
References
- https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683c
- https://github.com/radareorg/radare2/issues/25835
- https://github.com/radareorg/radare2/issues/25836
- https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-threads-list
- https://security-tracker.debian.org/tracker/CVE-2026-8695
CWEs
CWE-416
Verify integrity in audit chain (admin only). AS-IS.