[UPDATE] [medium] libpng: Multiple vulnerabilities
A remote, anonymous attacker can exploit multiple vulnerabilities in libpng to execute arbitrary program code or cause a Denial of Service.
CSIRTS triage
- What
- Multiple vulnerabilities allow a remote attacker to execute arbitrary code or cause a Denial of Service.
- Who is affected
- Deployments of libpng are affected by these vulnerabilities.
- Urgency
- Remediation is important due to the potential for code execution and Denial of Service, although exploitation has not been reported.
- Action
- Update to the latest version of libpng.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0870
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.
- Moderate exploitation riskCVE-2026-334161.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 62% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-336360.74% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 52% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-33416 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33636 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highexploited[UPDATE] [hoch] IBM QRadar SIEM: Mehrere Schwachstellencert-bund
- high[NEU] [hoch] Android Patchday September 2026: Mehrere Schwachstellencert-bund
- high[NEW] [high] IBM App Connect Enterprise: Multiple vulnerabilitiescert-bund
- unknownUSN-8639-1: libpng vulnerabilitiesubuntu
- unknownSamsung Products Multiple Vulnerabilitieshkcert
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] [mittel] libpng: Schwachstelle ermöglicht Codeausführungcert-bund · 2026-09-04
- medium[UPDATE] [mittel] libpng (API-Funktionen): Mehrere Schwachstellen ermöglichen DoS und Offenlegung von Informat…cert-bund · 2026-09-04
- medium[UPDATE] [mittel] libpng: Schwachstelle ermöglicht Denial of Service und Offenlegung von Informationencert-bund · 2026-09-04
- medium[UPDATE] [mittel] libpng: Mehrere Schwachstellencert-bund · 2026-09-04
- medium[UPDATE] [mittel] libpng: Schwachstelle ermöglicht Offenlegung von Informationencert-bund · 2026-09-04
- medium[UPDATE] [medium] libpng: Vulnerability enables denial of servicecert-bund · 2026-08-18
More from CERT-Bund (BSI) Security Advisories
- high[UPDATE] [hoch] Red Hat Enterprise Linux (postgis, virtuoso-opensource): Mehrere Schwachstellen2026-09-11
- medium[UPDATE] [mittel] Red Hat Enterprise Linux: Mehrere Schwachstellen2026-09-11
- medium[UPDATE] [mittel] Linux Kernel: Schwachstelle ermöglicht Denial of Service2026-09-11
- medium[UPDATE] [mittel] Linux Kernel: Mehrere Schwachstellen2026-09-11
- high[UPDATE] [hoch] OpenSSL: Mehrere Schwachstellen2026-09-11