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Critical 9.0Published May 26, 2026

CVE-2026-4480Samba: samba: remote code execution in printing subsystem via unescaped job description

Updated under an hour ago ()

Does this affect you?

It affects Red Hat Enterprise Linux 10 and 10 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J" substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.

CVSS
9.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-78
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
redhat
NVD analysis
Modified
Record last updated
Sep 1, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
from 0:4.23.5-109.el10_2 not affected
CNA record
from 0:4.21.3-114.el10_0.1 not affected
CNA record
from 0:4.10.16-26.el7_9.1 not affected
CNA record
from 0:4.13.3-12.el8_4.1 not affected
CNA record
from 0:4.13.3-12.el8_4.1 not affected
CNA record
from 0:4.17.5-7.el8_8.1 not affected
CNA record
from 0:4.17.5-7.el8_8.1 not affected
CNA record
from 0:4.21.3-14.el9_6.1 not affected
CNA record
4
CNA record
from 0:4.23.5-109.el10_2 not affected
CISA ADP

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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