CVE-2026-16526 (GCVE-0-2026-16526)

Vulnerability from cvelistv5 – Published: 2026-07-30 05:20 – Updated: 2026-08-04 17:33
VLAI
Title
Pcp: pcp: privilege escalation to root via linux_sockets pmda vulnerability
Summary
A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-403 - Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-16526 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2506026 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-07-30 00:00
Credits
Red Hat would like to thank Francisco Alisson Bezerra (TIM Security Red Team Research, TIM S.p.A), Lucas Gabriel Alves (TIM Security Red Team Research, TIM S.p.A), and Massimiliano Brolli (TIM Security Red Team Research, TIM S.p.A) for reporting this issue.
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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