What is CVE-2018-15834?

CVE-2018-15834 is a medium-severity vulnerability in Radare Radare2, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2018-09-12.

How severe is CVE-2018-15834?

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

Buffer overflow in Radare Radare2

CVE-2018-15834

In radare2 before 2.9.0, a heap overflow vulnerability exists in the read_module_referenced_functions function in libr/anal/flirt.c via a crafted flirt signature file.

Vulnerability class: Buffer Overflow

Published 2018-09-12 · 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: 0.010 (60.3th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Radare Radare2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/radare/radare2/pull/11300 (Patch, Third Party Advisory)
github.com/radare/radare2/issues/11274 (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-15834?: CVE-2018-15834 is a medium-severity vulnerability in Radare Radare2, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2018-09-12.
How severe is CVE-2018-15834?: Medium severity. CVSS v3 base score is 5.5 out of 10.