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Vulnerability record · CVE-2016-2191 · published 13 April 2016

CVE-2016-2191: Optipng memory buffer overflow vulnerability

Optipng · Optipng

The bmp_read_rows function in pngxtern/pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers to cause a denial of service (invalid memory write and crash) via a series of delta escapes in a crafted BMP image.

6.5 CVSS 3.0 Medium EPSS 3.5% · top 11.2% CWE-119 · Memory buffer overflow
6.5CVSS 3.0 base score, v2 4.3
3.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
20References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The bmp_read_rows function in pngxtern/pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers to cause a denial of service (invalid memory write and crash) via a series of delta escapes in a crafted BMP image.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-updates/2016-04/msg00061.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-04/msg00065.html Third Party Advisory
http://packetstormsecurity.com/files/136553/Optipng-Invalid-Write.html Exploit
http://seclists.org/fulldisclosure/2016/Apr/15 Third Party Advisory
http://www.debian.org/security/2016/dsa-3546 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/04/04/2 Third Party Advisory
http://www.securityfocus.com/archive/1/537972/100/0/threaded
http://www.ubuntu.com/usn/USN-2951-1 Third Party Advisory
https://security.gentoo.org/glsa/201608-01
https://sourceforge.net/p/optipng/bugs/59/ Patch
http://lists.opensuse.org/opensuse-updates/2016-04/msg00061.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-04/msg00065.html Third Party Advisory
http://packetstormsecurity.com/files/136553/Optipng-Invalid-Write.html Exploit
http://seclists.org/fulldisclosure/2016/Apr/15 Third Party Advisory
http://www.debian.org/security/2016/dsa-3546 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/04/04/2 Third Party Advisory
http://www.securityfocus.com/archive/1/537972/100/0/threaded
http://www.ubuntu.com/usn/USN-2951-1 Third Party Advisory
https://security.gentoo.org/glsa/201608-01
https://sourceforge.net/p/optipng/bugs/59/ Patch

Track CVE-2016-2191 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2016-2191), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.