What is CVE-2017-7946?

CVE-2017-7946 is a medium-severity vulnerability in Radare Radare2, classified under Use After Free. CVSS score: 5.5/10. Published 2017-04-18.

How severe is CVE-2017-7946?

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

Use After Free in Radare Radare2

CVE-2017-7946

The get_relocs_64 function in libr/bin/format/mach0/mach0.c in radare2 1.3.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted Mach0 file.

Vulnerability class: Use-After-Free

Published 2017-04-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.7th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.7% 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 — versions 1.3.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

github.com/radare/radare2/issues/7301 (Patch, Third Party Advisory, Issue Tracking)
github.com/radare/radare2/commit/d1e8ac62c6d978d4662f69116e30230d43033c92 (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-7946?: CVE-2017-7946 is a medium-severity vulnerability in Radare Radare2, classified under Use After Free. CVSS score: 5.5/10. Published 2017-04-18.
How severe is CVE-2017-7946?: Medium severity. CVSS v3 base score is 5.5 out of 10.