7.5

CVE-2020-27793: radare radare2 Off-by-one Error

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-27793
Published 19-08-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-27793 is a high (CVSS 7.5) Off-by-one Error vulnerability in radare radare2. EPSS estimates a 1.11% chance of exploitation in the next 30 days, higher than 65.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.11%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 19-08-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.11%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

+0.02 pp

From 1.09% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.11%

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
Ubuntu1 product
  • radare2All versions (No fix recorded)

2 vendors · 2 products

References

4 links