USN-8535-1: PipeWire vulnerabilities

unknownCVE-2026-14324 CVE-2026-14330

It was discovered that PipeWire accepted unbounded Content-Length values in its RAOP module. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS. (CVE-2026-14324) It was discovered that PipeWire performed multiple unbounded stack allocations in its PulseAudio protocol server. A local attacker could possibly use this issue to cause a denial of service. (CVE-2026-14330)

CSIRTS triage

vendor: PipeWire product: PipeWire Denial of serviceaffected: Ubuntu 24.04 LTS

What: PipeWire accepted unbounded Content-Length values in its RAOP module, potentially leading to a denial of service.
Who is affected: Deployments of PipeWire on Ubuntu 24.04 LTS are affected.
Urgency: Remediation is urgent due to the potential for denial of service by remote attackers.
Action: Update PipeWire to the latest version available for Ubuntu 24.04 LTS.

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

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Details

Source: Ubuntu Security Notices (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-07-13
Exploitation: Not in CISA KEV at last sync

Original advisory: https://ubuntu.com/security/notices/USN-8535-1

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-2026-143240.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.
Low exploitation riskCVE-2026-143300.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-14324	coverage & exploitation status	NVD · CVE.org
CVE-2026-14330	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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