Is CVE-2021-32494 in the CISA KEV catalog?

No. CVE-2021-32494 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-32494?

CVE-2021-32494 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2021-32494?

CVE-2021-32494 has an EPSS score of 0.70% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-32494?

Upgrade radare2 on debian unstable to 5.5.0+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-32494

CRITICAL

10.0

CVSS v3

NVD

Description

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.

CWE-369

How to fix

Remediation Available

radare2Debian

Fixed in:5.5.0+dfsg-1CVE-2021-32494

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

0.70%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-369 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-0207	High	7.5	20%	-	Fix
CVE-2017-8537	Medium	5.5	17%	-	-
CVE-2017-8536	Medium	5.5	17%	-	-
CVE-2017-8535	Medium	5.5	17%	-	-
CVE-2007-2237	Medium	5.5	15%	-	-
CVE-2025-0317	High	7.5	13%	-	-

Embed a live status badge for CVE-2021-32494

Markdown

[![CVE-2021-32494](https://tridentstack.com/cve/badge/CVE-2021-32494.svg)](https://tridentstack.com/cve/CVE-2021-32494)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-32494"><img src="https://tridentstack.com/cve/badge/CVE-2021-32494.svg" alt="CVE-2021-32494"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.