CVE-2022-26981

Name: CVE-2022-26981
Creator: NVD / NIST
Published: 2022-03-13T18:15:08.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.45%

Last modified Jun 17, 2026

CVE-2022-26981 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Liblouis through 3.21.0 has a buffer overflow in compilePassOpcode in compileTranslationTable.c (called, indirectly, by tools/lou_checktable.c).. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

Liblouis through 3.21.0 has a buffer overflow in compilePassOpcode in compileTranslationTable.c (called, indirectly, by tools/lou_checktable.c).

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.45%

70.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Liblouis	Liblouis	<= 3.21.0
Fedoraproject	Fedora	36
Apple	Ipados	< 15.6
Apple	Iphone Os	< 15.6
Apple	Macos	>= 12.0, < 12.5
Apple	Tvos	< 15.6
Apple	Watchos	< 8.7

References

http://seclists.org/fulldisclosure/2022/Jul/12Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/15Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/16Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/18Mailing List, Third Party Advisory
https://github.com/liblouis/liblouis/issues/1171Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CFD2KIHESDUCNWTEW3USFB5GKTWT624L/
https://security.gentoo.org/glsa/202301-06Third Party Advisory
https://support.apple.com/kb/HT213340Third Party Advisory
https://support.apple.com/kb/HT213342Third Party Advisory
https://support.apple.com/kb/HT213345Third Party Advisory
https://support.apple.com/kb/HT213346Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/12Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/15Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/16Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jul/18Mailing List, Third Party Advisory
https://github.com/liblouis/liblouis/issues/1171Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CFD2KIHESDUCNWTEW3USFB5GKTWT624L/
https://security.gentoo.org/glsa/202301-06Third Party Advisory
https://support.apple.com/kb/HT213340Third Party Advisory
https://support.apple.com/kb/HT213342Third Party Advisory
https://support.apple.com/kb/HT213345Third Party Advisory
https://support.apple.com/kb/HT213346Third Party Advisory

Timeline

Published: Mar 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26981?

Liblouis through 3.21.0 has a buffer overflow in compilePassOpcode in compileTranslationTable.c (called, indirectly, by tools/lou_checktable.c).

How severe is CVE-2022-26981?

CVE-2022-26981 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26981?

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-2022-26981?

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

Scan your code now

Source: NVD / NIST