10

CVE-2021-32494: radare radare2 Divide By Zero

CVSS: 10.0v3.1CriticalModified
AliasesUBUNTU-CVE-2021-32494
Published 07-07-2023Last modified 12-11-2024
Open JSON

Vulnerability summary

CVE-2021-32494 is a critical (CVSS 10.0) Divide By Zero vulnerability in radare radare2. EPSS estimates a 0.84% chance of exploitation in the next 30 days, higher than 57.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.84%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 07-07-2023
    PublishedVulnerability first disclosed.
  2. 12-11-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.84%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

0.00 pp

From 0.84% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.84%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Radare2

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Radare1 product
Radare21 product
Ubuntu1 product
  • radare2All versions (No fix recorded)

3 vendors · 3 products

References

4 links