What is CVE-2021-44974?

CVE-2021-44974 is a medium-severity vulnerability in Radare Radare2, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-05-25.

How severe is CVE-2021-44974?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-44974 known to be exploited?

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

NULL pointer dereference in Radare Radare2

CVE-2021-44974

radareorg radare2 version 5.5.2 is vulnerable to NULL Pointer Dereference via libr/bin/p/bin_symbols.c binary symbol parser.

Published 2022-05-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Radare Radare2

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

References

github.com/radareorg/radare2/issues/19478 (Exploit, Patch, Third Party Advisory, Issue Tracking)
census-labs.com/news/2022/05/24/multiple-vulnerabilities-in-radare2/ (Exploit, Third Party Advisory)
www.openwall.com/lists/oss-security/2022/05/25/1 (mailing-list, Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-44974?: CVE-2021-44974 is a medium-severity vulnerability in Radare Radare2, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-05-25.
How severe is CVE-2021-44974?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-44974 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.