CVE-2022-35011: PNGDec commit 8abf6be was discovered to contain a global buffer overflow via inflate_fast at /src/inffast.c.

This month

HIGH 8.8DOWNGRADE

CVE-2022-35011 is a high-severity flaw (CVSS 8.8) affecting pngdec. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PNGDec commit 8abf6be was discovered to contain a global buffer overflow via inflate_fast at /src/inffast.c.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-120
Published	2022-08-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pngdec project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-08-16 21:15 UTCPublished CVE record published
2026-06-17 04:51 UTCUpdated Record last modified

pngdec project pngdec DOWNGRADE

Affected: 1.0.0 · 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy pngdec || rpm -q pngdec || pngdec --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison pngdec sudo apt install pngdec=<VERSION_BEFORE_1.0.0> sudo apt-mark hold pngdec

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pngdec sudo dnf downgrade pngdec-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add pngdec

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-35011?

pngdec: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-35011 being exploited?

CVE-2022-35011 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-35011 affect?

CVE-2022-35011 affects pngdec. Severity is high (CVSS 8.8). PNGDec commit 8abf6be was discovered to contain a global buffer overflow via inflate_fast at /src/inffast.c.

How urgent is CVE-2022-35011?

Priority 52/100. High severity; Public exploit reference

Related CVEs

CVE-2022-35013 MEDIUM 6.5 DOWNGRADE PNGDec commit 8abf6be was discovered to contain a FPE via SaveBMP at /linux/main.cpp.
CVE-2022-35012 MEDIUM 6.5 DOWNGRADE PNGDec commit 8abf6be was discovered to contain a heap buffer overflow via SaveBMP at /linux/main.cpp.
CVE-2022-35010 MEDIUM 6.5 DOWNGRADE PNGDec commit 8abf6be was discovered to contain a heap buffer overflow via asan_interceptors_memintrinsics.cpp
CVE-2022-35009 MEDIUM 6.5 DOWNGRADE PNGDec commit 8abf6be was discovered to contain a memory allocation problem via asan_malloc_linux.cpp.
CVE-2022-35008 MEDIUM 6.5 DOWNGRADE PNGDec commit 8abf6be was discovered to contain a stack overflow via /linux/main.cpp.

References

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