CVE-2025-5647Public exploit

Local crash via threaded double-free race

Published Jun 5, 2025 · Updated Jun 5, 2025

Double-free in radiff2 5.9.9 allows local users to crash the process by running threaded binary comparisons with the experimental -T option. Concurrent radiff2 worker threads call r_cons_context_break_pop on the same console-break context, causing both threads to free one allocation. Reproduction requires a local command-line invocation and an AddressSanitizer build; the maintainer disputes that the race affects ordinary builds.

CVSS severity2.0
Low
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double-free in radiff2 5.9.9 allows local users to crash the process by running threaded binary comparisons with the experimental -T option. Concurrent radiff2 worker threads call r_cons_context_break_pop on the same console-break context, causing both threads to free one allocation. Reproduction requires a local command-line invocation and an AddressSanitizer build; the maintainer disputes that the race affects ordinary builds.

The record

CVE
CVE-2025-5647
Published
Jun 5, 2025
Updated
Jun 5, 2025
Vendor
radareorg
Product
radare2
Classifications
CWE-119
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.9.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

radareorg · radare2version=5.9.9

Published CVSS scores

1.0VulDBAV:L/AC:H/Au:S/C:N/I:N/A:P
2.5VulDBCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
2.0VulDBCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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