What is CVE-2021-32494?

CVE-2021-32494 is a critical-severity vulnerability in Radare Radare2, classified under Divide By Zero. CVSS score: 10.0/10. Published 2023-07-07.

How severe is CVE-2021-32494?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2021-32494 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Radare Radare2

CVE-2021-32494

Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.

EPSS: 0.007 (48.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Radare Radare2 — versions 5.3.0
Radare2 — versions 5.3.0-git 26142

Weakness classification (CWE)

CWE-369 — Divide By Zero

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

patrick@puiterwijk.org (Exploit, Patch, Issue Tracking, Vendor Advisory)
patrick@puiterwijk.org (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-32494?: CVE-2021-32494 is a critical-severity vulnerability in Radare Radare2, classified under Divide By Zero. CVSS score: 10.0/10. Published 2023-07-07.
How severe is CVE-2021-32494?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2021-32494 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.