CVE-2026-4480
CVE-2026-4480 · Samba: samba: remote code execution in printing subsystem via unescaped job description
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
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 · EPSS 13.9% · Public exploit · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:4.23.5-109.el10_2: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
- Versions
- ≥ 0:4.21.3-114.el10_0.1: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:4.10.16-26.el7_9.1: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 0:4.19.4-16.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
- Versions
- ≥ 0:4.13.3-12.el8_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
- Versions
- ≥ 0:4.13.3-12.el8_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
- Versions
- ≥ 0:4.15.5-16.el8_6.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
- Versions
- ≥ 0:4.15.5-16.el8_6.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
- Versions
- ≥ 0:4.17.5-7.el8_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
- Versions
- ≥ 0:4.17.5-7.el8_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:4.23.5-10.el9_8: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
- Versions
- ≥ 0:4.17.5-105.el9_2.5: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 update services for sap solutions
- Versions
- ≥ 0:4.19.4-105.el9_4.4: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
- Versions
- ≥ 0:4.21.3-14.el9_6.1: Not affected (rpm)
No fix published
red hat enterprise linux 6
No fix published
red hat openshift container platform 4
No fix published
red hat openshift container platform 4
No fix published
samba Debian:12
- Versions
- 2:4.17.10+dfsg-0+deb12u1
- 2:4.17.10+dfsg-0+deb12u1~bpo11+1
- 2:4.17.11+dfsg-0+deb12u1
- 2:4.17.12+dfsg-0+deb12u1
- 2:4.17.12+dfsg-0+deb12u1~bpo11+1
- 2:4.17.12+dfsg-0+deb12u2
- 2:4.17.12+dfsg-0+deb12u3
- 2:4.17.8+dfsg-2
- 2:4.17.8+dfsg-2.1
- 2:4.17.9+dfsg-0+deb12u1
- 2:4.17.9+dfsg-0+deb12u2
- 2:4.17.9+dfsg-0+deb12u3
- 2:4.17.9+dfsg-0+deb12u3~bpo11+1
- Affected ranges
- ECOSYSTEM: < 2:4.17.12+dfsg-0+deb12u4
Update to 2:4.17.12+dfsg-0+deb12u4
samba Debian:13
- Versions
- 2:4.22.3+dfsg-4
- 2:4.22.4+dfsg-1
- 2:4.22.4+dfsg-1~deb13u1
- 2:4.22.4+dfsg-1~deb13u1~bpo12+1
- 2:4.22.6+dfsg-0+deb13u1
- 2:4.22.6+dfsg-0+deb13u1~bpo12+1
- 2:4.22.8+dfsg-0+deb13u1
- Affected ranges
- ECOSYSTEM: < 2:4.22.8+dfsg-0+deb13u2
Update to 2:4.22.8+dfsg-0+deb13u2
samba Debian:14
- Versions
- 2:4.22.3+dfsg-4
- 2:4.22.4+dfsg-1
- 2:4.22.4+dfsg-1~deb13u1
- 2:4.22.4+dfsg-1~deb13u1~bpo12+1
- 2:4.23.0+dfsg-1
- 2:4.23.0+dfsg-2
- 2:4.23.0+dfsg-3
- 2:4.23.0~rc1+dfsg-1
- 2:4.23.0~rc2+dfsg-1
- 2:4.23.0~rc3+dfsg-1
- 2:4.23.1+dfsg-1
- 2:4.23.2+dfsg-1
- 2:4.23.3+dfsg-1
- 2:4.23.3+dfsg-1~bpo13+1
- 2:4.23.4+dfsg-1
- 2:4.23.4+dfsg-1~bpo13+1
- 2:4.23.5+dfsg-1
- 2:4.23.5+dfsg-1~bpo13+1
- 2:4.23.6+dfsg-1
- 2:4.23.6+dfsg-2
- 2:4.23.6+dfsg-2~bpo13+1
- 2:4.24.0+dfsg-1
- 2:4.24.0~rc1+dfsg-1
- 2:4.24.0~rc1+dfsg-2
- 2:4.24.0~rc1+dfsg-3
- 2:4.24.0~rc2+dfsg-1
- 2:4.24.1+dfsg-1
- 2:4.24.2+dfsg-1
- 2:4.24.2+dfsg-1~bpo13+1
- 2:4.24.3+dfsg-1~bpo13+1
- Affected ranges
- ECOSYSTEM: < 2:4.24.3+dfsg-1
Update to 2:4.24.3+dfsg-1
samba Ubuntu:Pro:14.04:LTS
- Versions
- 2:3.6.18-1ubuntu3
- 2:4.0.10+dfsg-4ubuntu2
- 2:4.0.13+dfsg-1ubuntu1
- 2:4.1.3+dfsg-2ubuntu2
- 2:4.1.3+dfsg-2ubuntu3
- 2:4.1.3+dfsg-2ubuntu4
- 2:4.1.3+dfsg-2ubuntu5
- 2:4.1.6+dfsg-1ubuntu1
- 2:4.1.6+dfsg-1ubuntu2
- 2:4.1.6+dfsg-1ubuntu2.14.04.1
- 2:4.1.6+dfsg-1ubuntu2.14.04.2
- 2:4.1.6+dfsg-1ubuntu2.14.04.3
- 2:4.1.6+dfsg-1ubuntu2.14.04.4
- 2:4.1.6+dfsg-1ubuntu2.14.04.5
- 2:4.1.6+dfsg-1ubuntu2.14.04.7
- 2:4.1.6+dfsg-1ubuntu2.14.04.8
- 2:4.1.6+dfsg-1ubuntu2.14.04.9
- 2:4.1.6+dfsg-1ubuntu2.14.04.11
- 2:4.1.6+dfsg-1ubuntu2.14.04.12
- 2:4.1.6+dfsg-1ubuntu2.14.04.13
- 2:4.3.8+dfsg-0ubuntu0.14.04.2
- 2:4.3.9+dfsg-0ubuntu0.14.04.1
- 2:4.3.9+dfsg-0ubuntu0.14.04.3
- 2:4.3.11+dfsg-0ubuntu0.14.04.1
- 2:4.3.11+dfsg-0ubuntu0.14.04.2
- 2:4.3.11+dfsg-0ubuntu0.14.04.3
- 2:4.3.11+dfsg-0ubuntu0.14.04.4
- 2:4.3.11+dfsg-0ubuntu0.14.04.6
- 2:4.3.11+dfsg-0ubuntu0.14.04.7
- 2:4.3.11+dfsg-0ubuntu0.14.04.8
- 2:4.3.11+dfsg-0ubuntu0.14.04.9
- 2:4.3.11+dfsg-0ubuntu0.14.04.10
- 2:4.3.11+dfsg-0ubuntu0.14.04.11
- 2:4.3.11+dfsg-0ubuntu0.14.04.12
- 2:4.3.11+dfsg-0ubuntu0.14.04.13
- 2:4.3.11+dfsg-0ubuntu0.14.04.14
- 2:4.3.11+dfsg-0ubuntu0.14.04.16
- 2:4.3.11+dfsg-0ubuntu0.14.04.17
- 2:4.3.11+dfsg-0ubuntu0.14.04.19
- 2:4.3.11+dfsg-0ubuntu0.14.04.20
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm9
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm14
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
samba Ubuntu:Pro:16.04:LTS
- Versions
- 2:4.1.17+dfsg-4ubuntu2
- 2:4.1.20+dfsg-1ubuntu1
- 2:4.1.20+dfsg-1ubuntu2
- 2:4.1.20+dfsg-1ubuntu3
- 2:4.1.20+dfsg-1ubuntu5
- 2:4.3.3+dfsg-1ubuntu1
- 2:4.3.3+dfsg-1ubuntu2
- 2:4.3.3+dfsg-1ubuntu3
- 2:4.3.6+dfsg-1ubuntu1
- 2:4.3.8+dfsg-0ubuntu1
- 2:4.3.9+dfsg-0ubuntu0.16.04.1
- 2:4.3.9+dfsg-0ubuntu0.16.04.2
- 2:4.3.9+dfsg-0ubuntu0.16.04.3
- 2:4.3.11+dfsg-0ubuntu0.16.04.1
- 2:4.3.11+dfsg-0ubuntu0.16.04.3
- 2:4.3.11+dfsg-0ubuntu0.16.04.5
- 2:4.3.11+dfsg-0ubuntu0.16.04.6
- 2:4.3.11+dfsg-0ubuntu0.16.04.7
- 2:4.3.11+dfsg-0ubuntu0.16.04.8
- 2:4.3.11+dfsg-0ubuntu0.16.04.9
- 2:4.3.11+dfsg-0ubuntu0.16.04.10
- 2:4.3.11+dfsg-0ubuntu0.16.04.11
- 2:4.3.11+dfsg-0ubuntu0.16.04.12
- 2:4.3.11+dfsg-0ubuntu0.16.04.13
- 2:4.3.11+dfsg-0ubuntu0.16.04.15
- 2:4.3.11+dfsg-0ubuntu0.16.04.16
- 2:4.3.11+dfsg-0ubuntu0.16.04.17
- 2:4.3.11+dfsg-0ubuntu0.16.04.18
- 2:4.3.11+dfsg-0ubuntu0.16.04.19
- 2:4.3.11+dfsg-0ubuntu0.16.04.20
- 2:4.3.11+dfsg-0ubuntu0.16.04.21
- 2:4.3.11+dfsg-0ubuntu0.16.04.23
- 2:4.3.11+dfsg-0ubuntu0.16.04.24
- 2:4.3.11+dfsg-0ubuntu0.16.04.25
- 2:4.3.11+dfsg-0ubuntu0.16.04.26
- 2:4.3.11+dfsg-0ubuntu0.16.04.27
- 2:4.3.11+dfsg-0ubuntu0.16.04.28
- 2:4.3.11+dfsg-0ubuntu0.16.04.29
- 2:4.3.11+dfsg-0ubuntu0.16.04.30
- 2:4.3.11+dfsg-0ubuntu0.16.04.31
- 2:4.3.11+dfsg-0ubuntu0.16.04.32
- 2:4.3.11+dfsg-0ubuntu0.16.04.34
- 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm1
- 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm2
- 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm3
- 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
samba Ubuntu:Pro:18.04:LTS
- Versions
- 2:4.6.7+dfsg-1ubuntu3
- 2:4.7.1+dfsg-1ubuntu1
- 2:4.7.3+dfsg-1ubuntu1
- 2:4.7.4+dfsg-1ubuntu1
- 2:4.7.6+dfsg~ubuntu-0ubuntu1
- 2:4.7.6+dfsg~ubuntu-0ubuntu2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.4
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.5
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.6
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.7
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.9
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.10
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.11
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.13
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.14
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.15
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.16
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.17
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.18
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.19
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.20
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.23
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.24
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.26
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.27
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.28
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.29
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm1
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
samba Ubuntu:Pro:20.04:LTS
- Versions
- 2:4.10.7+dfsg-0ubuntu2
- 2:4.10.7+dfsg-0ubuntu3
- 2:4.11.1+dfsg-3ubuntu1
- 2:4.11.1+dfsg-3ubuntu2
- 2:4.11.1+dfsg-3ubuntu4
- 2:4.11.5+dfsg-1ubuntu1
- 2:4.11.5+dfsg-1ubuntu2
- 2:4.11.6+dfsg-0ubuntu1
- 2:4.11.6+dfsg-0ubuntu1.1
- 2:4.11.6+dfsg-0ubuntu1.2
- 2:4.11.6+dfsg-0ubuntu1.3
- 2:4.11.6+dfsg-0ubuntu1.4
- 2:4.11.6+dfsg-0ubuntu1.5
- 2:4.11.6+dfsg-0ubuntu1.6
- 2:4.11.6+dfsg-0ubuntu1.8
- 2:4.11.6+dfsg-0ubuntu1.9
- 2:4.11.6+dfsg-0ubuntu1.10
- 2:4.13.14+dfsg-0ubuntu0.20.04.1
- 2:4.13.14+dfsg-0ubuntu0.20.04.2
- 2:4.13.14+dfsg-0ubuntu0.20.04.3
- 2:4.13.14+dfsg-0ubuntu0.20.04.4
- 2:4.13.17~dfsg-0ubuntu0.21.04.1
- 2:4.13.17~dfsg-0ubuntu0.21.04.2
- 2:4.13.17~dfsg-0ubuntu1.20.04.1
- 2:4.13.17~dfsg-0ubuntu1.20.04.2
- 2:4.13.17~dfsg-0ubuntu1.20.04.4
- 2:4.13.17~dfsg-0ubuntu1.20.04.5
- 2:4.15.13+dfsg-0ubuntu0.20.04.1
- 2:4.15.13+dfsg-0ubuntu0.20.04.2
- 2:4.15.13+dfsg-0ubuntu0.20.04.3
- 2:4.15.13+dfsg-0ubuntu0.20.04.4
- 2:4.15.13+dfsg-0ubuntu0.20.04.5
- 2:4.15.13+dfsg-0ubuntu0.20.04.6
- 2:4.15.13+dfsg-0ubuntu0.20.04.7
- 2:4.15.13+dfsg-0ubuntu0.20.04.8
- 2:4.15.13+dfsg-0ubuntu0.20.04.8+esm1
- Affected ranges
- ECOSYSTEM: < 2:4.15.13+dfsg-0ubuntu0.20.04.8+esm2
Update to 2:4.15.13+dfsg-0ubuntu0.20.04.8+esm2
Original sources
- https://access.redhat.com/errata/RHSA-2026:22644
- https://access.redhat.com/errata/RHSA-2026:22963
- https://access.redhat.com/errata/RHSA-2026:25049
- https://access.redhat.com/errata/RHSA-2026:25979
- https://access.redhat.com/errata/RHSA-2026:28053
- https://access.redhat.com/errata/RHSA-2026:28054
- https://access.redhat.com/errata/RHSA-2026:28055
- https://access.redhat.com/errata/RHSA-2026:28056
- https://access.redhat.com/errata/RHSA-2026:28057
- https://access.redhat.com/errata/RHSA-2026:28058
- https://access.redhat.com/errata/RHSA-2026:28132
- https://access.redhat.com/security/cve/CVE-2026-4480
- https://bugzilla.redhat.com/show_bug.cgi?id=2452232
- https://bugzilla.samba.org/show_bug.cgi?id=16033
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4480.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-4480