What is CVE-2018-11383?

CVE-2018-11383 is a medium-severity vulnerability in Radare Radare2, classified under Use of Uninitialized Resource. CVSS score: 5.5/10. Published 2018-05-22.

How severe is CVE-2018-11383?

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

Vulnerability in Radare Radare2

CVE-2018-11383

The r_strbuf_fini() function in radare2 2.5.0 allows remote attackers to cause a denial of service (invalid free and application crash) via a crafted ELF file because of an uninitialized variable in the CPSE handler in libr/anal/p/anal_avr.c.

Published 2018-05-22 · 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: 0.011 (65.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: -0.000

Affected products

Radare Radare2 — versions 2.5.0

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

github.com/radare/radare2/commit/9d348bcc2c4bbd3805e7eec97b594be9febbdf9a (Patch, Third Party Advisory)
github.com/radare/radare2/issues/9943 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-11383?: CVE-2018-11383 is a medium-severity vulnerability in Radare Radare2, classified under Use of Uninitialized Resource. CVSS score: 5.5/10. Published 2018-05-22.
How severe is CVE-2018-11383?: Medium severity. CVSS v3 base score is 5.5 out of 10.