FKIE_CVE-2026-8696

Vulnerability from fkie_nvd - Published: 2026-05-15 21:16 - Updated: 2026-05-19 14:16
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_pids_list() function within the GDB client core that allows remote attackers to cause a denial of service or potentially execute arbitrary code by sending malformed thread information responses. Attackers can trigger the vulnerability by causing qsThreadInfo to fail after qfThreadInfo successfully allocates RDebugPid structures, resulting in double-free memory corruption when the error path attempts to clean up the list.
References
disclosure@vulncheck.comhttps://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683cPatch
disclosure@vulncheck.comhttps://github.com/radareorg/radare2/issues/25836Exploit, Issue Tracking
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-pids-listThird Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/radareorg/radare2/issues/25836Exploit, Issue Tracking
Impacted products
Vendor Product Version
radare radare2 *
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  "id": "CVE-2026-8696",
  "lastModified": "2026-05-19T14:16:49.757",
  "metrics": {
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          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "providerUrgency": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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  "published": "2026-05-15T21:16:39.360",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.