[UPDATE] [medium] GStreamer: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities allow attackers to conduct denial of service attacks, manipulate data, or disclose confidential information.

Who is affected

Users of GStreamer are affected.

Urgency

Remediation is medium urgency due to the potential for service disruption and data exposure.

Action

Update GStreamer to the latest version.

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

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

medium

Published

2026-08-24

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-2026-1919

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-2026-527180.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-527190.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-527200.64% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-527210.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-527220.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-537020.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-537030.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-537040.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-537050.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• unknownDSA-6458-1 gst-plugins-bad1.0 - security updatedebian
• medium[UPDATE] [medium] GStreamer: Multiple vulnerabilitiescert-bund
• unknownUSN-8584-1: GStreamer Good Plugins vulnerabilitiesubuntu
• unknownDSA-6362-1 gst-plugins-bad1.0 - security updatedebian

Recent advisories for GStreamer

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[NEW] [medium] GStreamer: Multiple vulnerabilitiescert-bund · 2026-08-25
• high[NEW] [high] GStreamer: Multiple Vulnerabilitiescert-bund · 2026-08-24
• medium[UPDATE] [medium] GStreamer: Multiple vulnerabilitiescert-bund · 2026-08-24
• highCVE-2026-18299: GStreamer rtpsbcdepay Use-After-Free Remote Code Execution Vulnerability. This vulnerability a…nvd · 2026-08-20
• highCVE-2026-18298: GStreamer PNG File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. Thi…nvd · 2026-08-20
• highCVE-2026-18297: GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. Th…nvd · 2026-08-20

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