CVE-2022-1623

Name: CVE-2022-1623
Creator: NVD / NIST
Published: 2022-05-11T15:15:09.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.21%

Last modified Jun 17, 2026

CVE-2022-1623 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif_lzw.c:624, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif_lzw.c:624, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa.

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

1.21%

64.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Libtiff	Libtiff	4.3.0
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36
Netapp	Ontap Select Deploy Administration Utility	All versions
Debian	Debian Linux	11.0

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-1623.jsonThird Party Advisory
https://gitlab.com/libtiff/libtiff/-/commit/b4e79bfa0c7d2d08f6f1e7ec38143fc8cb11394aPatch, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/issues/410Exploit, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C7IWZTB4J2N4F5OR5QY4VHDSKWKZSWN3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXAFOP6QQRNZD3HPZ6BMCEZZOM4YIZMK/
https://security.gentoo.org/glsa/202210-10Third Party Advisory
https://security.netapp.com/advisory/ntap-20220616-0005/Third Party Advisory
https://www.debian.org/security/2023/dsa-5333Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-1623.jsonThird Party Advisory
https://gitlab.com/libtiff/libtiff/-/commit/b4e79bfa0c7d2d08f6f1e7ec38143fc8cb11394aPatch, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/issues/410Exploit, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C7IWZTB4J2N4F5OR5QY4VHDSKWKZSWN3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXAFOP6QQRNZD3HPZ6BMCEZZOM4YIZMK/
https://security.gentoo.org/glsa/202210-10Third Party Advisory
https://security.netapp.com/advisory/ntap-20220616-0005/Third Party Advisory
https://www.debian.org/security/2023/dsa-5333Third Party Advisory

Timeline

Published: May 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-1623?

How severe is CVE-2022-1623?

CVE-2022-1623 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2022-1623?

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-2022-1623?

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

Scan your code now

Source: NVD / NIST