6.8

CVE-2026-59677: Process Kill Attack Vector in killall() in seunshare

Deferred
AliasesUBUNTU-CVE-2026-59677DEBIAN-CVE-2026-59677
Published 23-07-2026Last modified 23-07-2026

Vulnerability summary

CVE-2026-59677 is a medium (CVSS 6.8) Missing Authorization vulnerability in selinuxproject selinux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.8/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2026:44343

Timeline

  1. 23-07-2026
    PublishedVulnerability first disclosed.
  2. 23-07-2026
    Last modifiedVulnerability information updated.

Description

A Missing Authorization vulnerability in selinux policycoreutils seunshares allows a user that is running in unconfined context to kill e.g. root-owned processes running also in unconfined context This issue affects policycoreutils through 3.10.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.14% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian2 products
  • policycoreutils< 2.7-1
  • selinux-pythonAll versions (No fix recorded) | < 3.7-1
Ubuntu2 products
  • policycoreutilsAll versions (No fix recorded)
  • selinuxAll versions (No fix recorded)
Selinuxproject1 product

3 vendors · 5 products

References

5 links