[UPDATE] [medium] libpng: Multiple vulnerabilities enable Denial of Service

mediumCVE-2025-28162 CVE-2025-28164

An attacker can exploit multiple vulnerabilities in libpng to conduct a Denial of Service attack.

CSIRTS triage

vendor: libpng product: libpng Denial of service

What: Multiple vulnerabilities enable denial of service attacks against libpng.
Who is affected: All applications and systems using libpng are potentially vulnerable to denial of service.
Urgency: Medium priority; denial of service impacts availability but exploitation requires specific attack conditions.
Action: Update libpng to a version addressing CVE-2025-28162 and CVE-2025-28164.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-12
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0237

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-281620.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-281640.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-28162	coverage & exploitation status	NVD · CVE.org
CVE-2025-28164	coverage & exploitation status	NVD · CVE.org

Recent advisories for libpng

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[UPDATE] [medium] libpng: Vulnerability enables denial of servicecert-bund · 2026-08-18
medium[UPDATE] [medium] libpng: Vulnerability Enables Information Disclosurecert-bund · 2026-08-18
medium[UPDATE] [medium] libpng: Multiple vulnerabilitiescert-bund · 2026-08-18
medium[UPDATE] [medium] libpng: Vulnerability enables denial of servicecert-bund · 2026-08-18
medium[UPDATE] [medium] libpng: Vulnerability enables denial of servicecert-bund · 2026-08-18
unknownUSN-8639-1: libpng vulnerabilitiesubuntu · 2026-08-17