CVE-2026-8695
radare2 6.1.5 Use-After-Free via gdbr_threads_list()
- State
- Published
- Severity
- 8.7 High
- Published
- May 15, 2026
- Updated
- Jul 14, 2026
- Reserved
- May 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS: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 |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
radare2radare2 |
|
References
- https://github.com/radareorg/radare2/issues/25835issue-tracking
- https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683cpatch
- https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-threads-listthird-party-advisory
- https://github.com/radareorg/radare2/issues/25836issue-tracking
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