7.5

CVE-2020-27795: radare radare2 Use of Uninitialized Resource

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-27795
Published 19-08-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-27795 is a high (CVSS 7.5) Use of Uninitialized Resource vulnerability in radare radare2. EPSS estimates a 1.51% chance of exploitation in the next 30 days, higher than 74% 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
1.51%
0%100%
Low · +0.03 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

A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c, when command "adf" has no or wrong argument, anal_fcn_data (core, input + 1) --> RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, core->offset, -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn).

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.51%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

+0.03 pp

From 1.47% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.51%

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

5 links