8.8

CVE-2026-16526: pcp File Descriptor Leak

CVSS: 8.8v3.1HighAwaiting analysis
AliasesUBUNTU-CVE-2026-16526DEBIAN-CVE-2026-16526
Published 30-07-2026Last modified 01-10-2026
Open JSON

Vulnerability summary

CVE-2026-16526 is a high (CVSS 8.8) File Descriptor Leak vulnerability in pcp. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 46.1% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.57%
0%100%
Low · +0.12 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 20 · Related 10
OPENSUSE-SU-2026:11490-1OPENSUSE-SU-2026:21636-1RHSA-2026:55560RHSA-2026:55617RHSA-2026:55740RHSA-2026:72272

Timeline

  1. 30-07-2026
    PublishedVulnerability first disclosed.
  2. 01-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

+0.12 pp

From 0.45% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.57%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • pcpAll versions (No fix recorded)
Ubuntu1 product
  • pcpAll versions (No fix recorded)

2 vendors · 2 products

References

15 links
Show all 15 references