CVE-2018-20458

Name: CVE-2018-20458
Creator: NVD / NIST
Published: 2018-12-25T19:29:00.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.94%

Last modified Jun 17, 2026

CVE-2018-20458 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In radare2 prior to 3.1.1, r_bin_dyldcache_extract in libr/bin/format/mach0/dyldcache.c may allow attackers to cause a denial-of-service (application crash caused by out-of-bounds read) by crafting an input file.. EPSS estimates a 0.94% chance of exploitation in the next 30 days.

Description

In radare2 prior to 3.1.1, r_bin_dyldcache_extract in libr/bin/format/mach0/dyldcache.c may allow attackers to cause a denial-of-service (application crash caused by out-of-bounds read) by crafting an input file.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.94%

56.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Radare	Radare2	< 3.1.1

References

https://github.com/radare/radare2/issues/12374Exploit, Third Party Advisory
https://github.com/radareorg/radare2/commit/30f4c7b52a4e2dc0d0b1bae487d90f5437c69d19Patch, Vendor Advisory
https://github.com/radare/radare2/issues/12374Exploit, Third Party Advisory
https://github.com/radareorg/radare2/commit/30f4c7b52a4e2dc0d0b1bae487d90f5437c69d19Patch, Vendor Advisory

Timeline

Published: Dec 25, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20458?

How severe is CVE-2018-20458?

CVE-2018-20458 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20458?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20458?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST