CVE-2016-5735

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows...

7.8 HighFix available

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.80%Up 0.7 points since Feb 4, 2022

What each source reports

NVD Score used 7.8

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: CVE-2016-5735
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-190
Updated: 2026-11-02

CVE List No score

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: CVE-2016-5735
Updated: 2026-11-02

EUVDEUVD-2016-6670 No score

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: EUVD-2016-6670
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2326-85qm-8gr9 7.8

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows...

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: GHSA-2326-85qm-8gr9
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-190
Updated: 2026-11-02

OSV 7.8

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: CVE-2016-5735
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-5735 7.8

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: DEBIAN-CVE-2016-5735
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-5735 7.8

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Record: UBUNTU-CVE-2016-5735
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10972-1 No score

libpng16-16-1.6.37-3.3 on GA media

These are all security issues fixed in the libpng16-16-1.6.37-3.3 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10972-1
Updated: 2026-11-02

Affected products

pngquant

Affected packages

Affected packages
Package	Affected	Fixed
`pngquant` Debian:12	before 2.5.0-2	2.5.0-2
`pngquant` Debian:13	before 2.5.0-2	2.5.0-2
`pngquant` Debian:14	before 2.5.0-2	2.5.0-2
`pngquant` Debian:8	before 2.3.0-1+deb8u1, plus listed versions 2.3.0-1	2.3.0-1+deb8u1
`pngquant` Debian:7	before 1.0-4.1+deb7u1, plus listed versions 1.0-4.1	1.0-4.1+deb7u1
`pngquant` Ubuntu:16.04:LTS	All versions, plus listed versions 2.5.0-1	None known
`libpng16` openSUSE:Tumbleweed	before 1.6.37-3.3	1.6.37-3.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-5735 is a high vulnerability (CVSS 7.8) in Pngquant, published May 23, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.80%, the 78th percentile. Fixed in pngquant 2.5.0-2.

References

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