CVE-2022-25309

Name: CVE-2022-25309
Creator: NVD / NIST
Published: 2022-09-06T18:15:11.493+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2022-25309 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A heap-based buffer overflow flaw was found in the Fribidi package and affects the fribidi_cap_rtl_to_unicode() function of the fribidi-char-sets-cap-rtl.c file. This flaw allows an attacker to pass a specially crafted file to the Fribidi application with the '--caprtl' option, leading to a crash and causing a denial of service.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

A heap-based buffer overflow flaw was found in the Fribidi package and affects the fribidi_cap_rtl_to_unicode() function of the fribidi-char-sets-cap-rtl.c file. This flaw allows an attacker to pass a specially crafted file to the Fribidi application with the '--caprtl' option, leading to a crash and causing a denial of service.

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

0.48%

37.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Fribidi	< 1.0.12
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0

References

https://access.redhat.com/security/cve/CVE-2022-25309Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2047896Exploit, Issue Tracking, Third Party Advisory
https://github.com/fribidi/fribidi/commit/f22593b82b5d1668d1997dbccd10a9c31ffea3b3Patch, Third Party Advisory
https://github.com/fribidi/fribidi/issues/182Exploit, Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-25309Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2047896Exploit, Issue Tracking, Third Party Advisory
https://github.com/fribidi/fribidi/commit/f22593b82b5d1668d1997dbccd10a9c31ffea3b3Patch, Third Party Advisory
https://github.com/fribidi/fribidi/issues/182Exploit, Third Party Advisory

Timeline

Published: Sep 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-25309?

How severe is CVE-2022-25309?

CVE-2022-25309 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2022-25309?

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-2022-25309?

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

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Source: NVD / NIST