High 8.8Published Nov 3, 2022

CVE-2022-44638In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.

Updated under an hour ago (Nov 2, 2026, 12:23 AM ET)

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In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow in pixman_sample_floor_y.

CVSS: 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

pixman pixman pixman:pixman	before 0.42.2	NVD
debian debian_linux debian:debian_linux	10.0; 11.0	NVD
fedoraproject fedora fedoraproject:fedora	35; 36; 37	NVD

References

References

http://packetstormsecurity.com/files/170121/pixman-pixman_sample_floor_y-Integer-Overflow.html	exploit, third-party-advisory
http://www.openwall.com/lists/oss-security/2022/11/05/1	mailing-list
https://gitlab.freedesktop.org/pixman/pixman/-/issues/63	exploit, issue-tracking, patch, third-party-advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00008.html	mailing-list, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
https://www.debian.org/security/2022/dsa-5276	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.