CVE-2026-14330

Local service crash via unbounded stack allocation

Published Jul 1, 2026 · Updated Jul 1, 2026

Stack exhaustion in PipeWire's PulseAudio protocol server allows local users to crash the PipeWire daemon through crafted client requests. Multiple request handlers pass attacker-controlled card-parameter or client-property counts to alloca() without enforcing an upper bound, exhausting the daemon's stack. A low-privileged local user must connect as a PulseAudio client; successful exploitation interrupts audio services by terminating the daemon.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack exhaustion in PipeWire's PulseAudio protocol server allows local users to crash the PipeWire daemon through crafted client requests. Multiple request handlers pass attacker-controlled card-parameter or client-property counts to alloca() without enforcing an upper bound, exhausting the daemon's stack. A low-privileged local user must connect as a PulseAudio client; successful exploitation interrupts audio services by terminating the daemon.

The record

CVE
CVE-2026-14330
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5Red Hat, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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