CVE-2025-5643Public exploit

Local process crash via threaded double-free

Published Jun 5, 2025 · Updated Jun 5, 2025

Double-free memory corruption in radiff2 in radareorg radare2 5.9.9 allows local users to crash the process through threaded diff mode. With -T enabled, concurrent radiff2 workers call cons_stack_load and free the same console buffer, producing an AddressSanitizer double-free abort. Reachability requires local execution of the experimental option with two inputs; upstream disputes a real-world race outside AddressSanitizer builds.

CVSS severity2.0
Low
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double-free memory corruption in radiff2 in radareorg radare2 5.9.9 allows local users to crash the process through threaded diff mode. With -T enabled, concurrent radiff2 workers call cons_stack_load and free the same console buffer, producing an AddressSanitizer double-free abort. Reachability requires local execution of the experimental option with two inputs; upstream disputes a real-world race outside AddressSanitizer builds.

The record

CVE
CVE-2025-5643
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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