What’s Vulnerable › Vulnerabilities

CVE-2022-1240: Heap buffer overflow in libr/bin/format/mach0/mach0.c in radareorg/radare2

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-04-06 · updated 2026-06-17
• Weakness: CWE-122

Description

Heap buffer overflow in libr/bin/format/mach0/mach0.c in GitHub repository radareorg/radare2 prior to 5.8.6. If address sanitizer is disabled during the compiling, the program should executes into the `r_str_ncpy` function. Therefore I think it is very likely to be exploitable. For more general description of heap buffer overflow, see [CWE](https://cwe.mitre.org/data/definitions/122.html).

Affected products

• radareorg/radare2: through 5.6.6

References

• https://github.com/radareorg/radare2/commit/ca8d8b39f3e34a4fd943270330b80f1148129de4
• https://huntr.dev/bounties/e589bd97-4c74-4e79-93b5-0951a281facc
• https://github.com/radareorg/radare2/commit/ca8d8b39f3e34a4fd943270330b80f1148129de4
• https://huntr.dev/bounties/e589bd97-4c74-4e79-93b5-0951a281facc

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