01 Record
CVE-2026-4480
Samba: samba: remote code execution in printing subsystem via unescaped job description
CriticalPUBLISHEDCNA: redhat
CNA base score9.0 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
02 Description
Samba: samba: remote code execution in printing subsystem via unescaped job description
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 13.93% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 96.4% of scored records. A rank, not a probability.
- NVD base score
- 9.0 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-09-01.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-26 13:56Z5 MO AGO
- Last updated
- 2026-09-01 12:04Z1 MO AGO
- Reserved
- 2026-03-19
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.0)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
- Data version
- 5.2
- Document digest
- dfa7db259a5aae6df362c4d277980744af38583659c6590a52bff060fe10175c
05 Affected products
VendorProductVersionsPlatforms
06 References
- access.redhat.comRHSA-2026:22644https://access.redhat.com/errata/RHSA-2026:22644
- access.redhat.comRHSA-2026:22963https://access.redhat.com/errata/RHSA-2026:22963
- access.redhat.comRHSA-2026:25049https://access.redhat.com/errata/RHSA-2026:25049
- access.redhat.comRHSA-2026:25979https://access.redhat.com/errata/RHSA-2026:25979
- access.redhat.comRHSA-2026:28053https://access.redhat.com/errata/RHSA-2026:28053
- access.redhat.comRHSA-2026:28054https://access.redhat.com/errata/RHSA-2026:28054
- access.redhat.comRHSA-2026:28055https://access.redhat.com/errata/RHSA-2026:28055
- access.redhat.comRHSA-2026:28056https://access.redhat.com/errata/RHSA-2026:28056
- access.redhat.comRHSA-2026:28057https://access.redhat.com/errata/RHSA-2026:28057
- access.redhat.comRHSA-2026:28058https://access.redhat.com/errata/RHSA-2026:28058
- access.redhat.comRHSA-2026:28132https://access.redhat.com/errata/RHSA-2026:28132
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-4480
- bugzilla.redhat.comRHBZ#2452232https://bugzilla.redhat.com/show_bug.cgi?id=2452232
- bugzilla.samba.orghttps://bugzilla.samba.org/show_bug.cgi?id=16033
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4480.json
07 Fixed in
AlmaLinux 8
- ctdb Fixed in 4.19.4-16.el8_10
- libnetapi Fixed in 4.19.4-16.el8_10
- libnetapi-devel Fixed in 4.19.4-16.el8_10
- libsmbclient Fixed in 4.19.4-16.el8_10
- libsmbclient-devel Fixed in 4.19.4-16.el8_10
- libwbclient Fixed in 4.19.4-16.el8_10
- libwbclient-devel Fixed in 4.19.4-16.el8_10
- python3-samba Fixed in 4.19.4-16.el8_10
- python3-samba-dc Fixed in 4.19.4-16.el8_10
- python3-samba-devel Fixed in 4.19.4-16.el8_10
- python3-samba-test Fixed in 4.19.4-16.el8_10
- samba Fixed in 4.19.4-16.el8_10
- samba-client Fixed in 4.19.4-16.el8_10
- samba-client-libs Fixed in 4.19.4-16.el8_10
- samba-common Fixed in 4.19.4-16.el8_10
- samba-common-libs Fixed in 4.19.4-16.el8_10
- samba-common-tools Fixed in 4.19.4-16.el8_10
- samba-dc-libs Fixed in 4.19.4-16.el8_10
- samba-dcerpc Fixed in 4.19.4-16.el8_10
- samba-devel Fixed in 4.19.4-16.el8_10
- samba-krb5-printing Fixed in 4.19.4-16.el8_10
- samba-ldb-ldap-modules Fixed in 4.19.4-16.el8_10
- samba-libs Fixed in 4.19.4-16.el8_10
- samba-pidl Fixed in 4.19.4-16.el8_10
- samba-test Fixed in 4.19.4-16.el8_10
- samba-test-libs Fixed in 4.19.4-16.el8_10
- samba-tools Fixed in 4.19.4-16.el8_10
- samba-usershares Fixed in 4.19.4-16.el8_10
- samba-vfs-iouring Fixed in 4.19.4-16.el8_10
- samba-winbind Fixed in 4.19.4-16.el8_10
- samba-winbind-clients Fixed in 4.19.4-16.el8_10
- samba-winbind-krb5-locator Fixed in 4.19.4-16.el8_10
- samba-winbind-modules Fixed in 4.19.4-16.el8_10
- samba-winexe Fixed in 4.19.4-16.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- ldb-tools Fixed in 4.23.5-10.el9_8
- libldb Fixed in 4.23.5-10.el9_8
- libldb-devel Fixed in 4.23.5-10.el9_8
- libnetapi Fixed in 4.23.5-10.el9_8
- libnetapi-devel Fixed in 4.23.5-10.el9_8
- libsmbclient Fixed in 4.23.5-10.el9_8
- libsmbclient-devel Fixed in 4.23.5-10.el9_8
- libwbclient Fixed in 4.23.5-10.el9_8
- libwbclient-devel Fixed in 4.23.5-10.el9_8
- python3-ldb Fixed in 4.23.5-10.el9_8
- python3-samba Fixed in 4.23.5-10.el9_8
- python3-samba-dc Fixed in 4.23.5-10.el9_8
- python3-samba-test Fixed in 4.23.5-10.el9_8
- samba Fixed in 4.23.5-10.el9_8
- samba-client Fixed in 4.23.5-10.el9_8
- samba-client-libs Fixed in 4.23.5-10.el9_8
- samba-common Fixed in 4.23.5-10.el9_8
- samba-common-libs Fixed in 4.23.5-10.el9_8
- samba-common-tools Fixed in 4.23.5-10.el9_8
- samba-dc-libs Fixed in 4.23.5-10.el9_8
- samba-dcerpc Fixed in 4.23.5-10.el9_8
- samba-devel Fixed in 4.23.5-10.el9_8
- samba-gpupdate Fixed in 4.23.5-10.el9_8
- samba-krb5-printing Fixed in 4.23.5-10.el9_8
- samba-ldb-ldap-modules Fixed in 4.23.5-10.el9_8
- samba-libs Fixed in 4.23.5-10.el9_8
- samba-pidl Fixed in 4.23.5-10.el9_8
- samba-test Fixed in 4.23.5-10.el9_8
- samba-test-libs Fixed in 4.23.5-10.el9_8
- samba-tools Fixed in 4.23.5-10.el9_8
- samba-usershares Fixed in 4.23.5-10.el9_8
- samba-vfs-iouring Fixed in 4.23.5-10.el9_8
- samba-winbind Fixed in 4.23.5-10.el9_8
- samba-winbind-clients Fixed in 4.23.5-10.el9_8
- samba-winbind-krb5-locator Fixed in 4.23.5-10.el9_8
- samba-winbind-modules Fixed in 4.23.5-10.el9_8
- samba-winexe Fixed in 4.23.5-10.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- ldb-tools Fixed in 4.23.5-109.el10_2
- libldb Fixed in 4.23.5-109.el10_2
- libldb-devel Fixed in 4.23.5-109.el10_2
- libnetapi Fixed in 4.23.5-109.el10_2
- libnetapi-devel Fixed in 4.23.5-109.el10_2
- libsmbclient Fixed in 4.23.5-109.el10_2
- libsmbclient-devel Fixed in 4.23.5-109.el10_2
- libwbclient Fixed in 4.23.5-109.el10_2
- libwbclient-devel Fixed in 4.23.5-109.el10_2
- python3-ldb Fixed in 4.23.5-109.el10_2
- python3-samba Fixed in 4.23.5-109.el10_2
- python3-samba-dc Fixed in 4.23.5-109.el10_2
- python3-samba-test Fixed in 4.23.5-109.el10_2
- samba Fixed in 4.23.5-109.el10_2
- samba-client Fixed in 4.23.5-109.el10_2
- samba-client-libs Fixed in 4.23.5-109.el10_2
- samba-common Fixed in 4.23.5-109.el10_2
- samba-common-libs Fixed in 4.23.5-109.el10_2
- samba-common-tools Fixed in 4.23.5-109.el10_2
- samba-dc-libs Fixed in 4.23.5-109.el10_2
- samba-dcerpc Fixed in 4.23.5-109.el10_2
- samba-devel Fixed in 4.23.5-109.el10_2
- samba-gpupdate Fixed in 4.23.5-109.el10_2
- samba-krb5-printing Fixed in 4.23.5-109.el10_2
- samba-ldb-ldap-modules Fixed in 4.23.5-109.el10_2
- samba-libs Fixed in 4.23.5-109.el10_2
- samba-pidl Fixed in 4.23.5-109.el10_2
- samba-test Fixed in 4.23.5-109.el10_2
- samba-test-libs Fixed in 4.23.5-109.el10_2
- samba-tools Fixed in 4.23.5-109.el10_2
- samba-usershares Fixed in 4.23.5-109.el10_2
- samba-vfs-iouring Fixed in 4.23.5-109.el10_2
- samba-winbind Fixed in 4.23.5-109.el10_2
- samba-winbind-clients Fixed in 4.23.5-109.el10_2
- samba-winbind-krb5-locator Fixed in 4.23.5-109.el10_2
- samba-winbind-modules Fixed in 4.23.5-109.el10_2
- samba-winexe Fixed in 4.23.5-109.el10_2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- ctdb Fixed in 4.19.4-16.el8_10
- libnetapi Fixed in 4.19.4-16.el8_10
- libnetapi-devel Fixed in 4.19.4-16.el8_10
- libsmbclient Fixed in 4.19.4-16.el8_10
- libsmbclient-devel Fixed in 4.19.4-16.el8_10
- libwbclient Fixed in 4.19.4-16.el8_10
- libwbclient-devel Fixed in 4.19.4-16.el8_10
- python3-samba Fixed in 4.19.4-16.el8_10
- python3-samba-dc Fixed in 4.19.4-16.el8_10
- python3-samba-devel Fixed in 4.19.4-16.el8_10
- python3-samba-test Fixed in 4.19.4-16.el8_10
- samba Fixed in 4.19.4-16.el8_10
- samba-client Fixed in 4.19.4-16.el8_10
- samba-client-libs Fixed in 4.19.4-16.el8_10
- samba-common Fixed in 4.19.4-16.el8_10
- samba-common-libs Fixed in 4.19.4-16.el8_10
- samba-common-tools Fixed in 4.19.4-16.el8_10
- samba-dc-libs Fixed in 4.19.4-16.el8_10
- samba-dcerpc Fixed in 4.19.4-16.el8_10
- samba-devel Fixed in 4.19.4-16.el8_10
- samba-krb5-printing Fixed in 4.19.4-16.el8_10
- samba-ldb-ldap-modules Fixed in 4.19.4-16.el8_10
- samba-libs Fixed in 4.19.4-16.el8_10
- samba-pidl Fixed in 4.19.4-16.el8_10
- samba-test Fixed in 4.19.4-16.el8_10
- samba-test-libs Fixed in 4.19.4-16.el8_10
- samba-tools Fixed in 4.19.4-16.el8_10
- samba-usershares Fixed in 4.19.4-16.el8_10
- samba-vfs-iouring Fixed in 4.19.4-16.el8_10
- samba-winbind Fixed in 4.19.4-16.el8_10
- samba-winbind-clients Fixed in 4.19.4-16.el8_10
- samba-winbind-krb5-locator Fixed in 4.19.4-16.el8_10
- samba-winbind-modules Fixed in 4.19.4-16.el8_10
- samba-winexe Fixed in 4.19.4-16.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- ldb-tools Fixed in 4.23.5-10.el9_8
- libldb Fixed in 4.23.5-10.el9_8
- libldb-devel Fixed in 4.23.5-10.el9_8
- libnetapi Fixed in 4.23.5-10.el9_8
- libnetapi-devel Fixed in 4.23.5-10.el9_8
- libsmbclient Fixed in 4.23.5-10.el9_8
- libsmbclient-devel Fixed in 4.23.5-10.el9_8
- libwbclient Fixed in 4.23.5-10.el9_8
- libwbclient-devel Fixed in 4.23.5-10.el9_8
- python3-ldb Fixed in 4.23.5-10.el9_8
- python3-samba Fixed in 4.23.5-10.el9_8
- python3-samba-dc Fixed in 4.23.5-10.el9_8
- python3-samba-test Fixed in 4.23.5-10.el9_8
- samba Fixed in 4.23.5-10.el9_8
- samba-client Fixed in 4.23.5-10.el9_8
- samba-client-libs Fixed in 4.23.5-10.el9_8
- samba-common Fixed in 4.23.5-10.el9_8
- samba-common-libs Fixed in 4.23.5-10.el9_8
- samba-common-tools Fixed in 4.23.5-10.el9_8
- samba-dc-libs Fixed in 4.23.5-10.el9_8
- samba-dcerpc Fixed in 4.23.5-10.el9_8
- samba-devel Fixed in 4.23.5-10.el9_8
- samba-gpupdate Fixed in 4.23.5-10.el9_8
- samba-krb5-printing Fixed in 4.23.5-10.el9_8
- samba-ldb-ldap-modules Fixed in 4.23.5-10.el9_8
- samba-libs Fixed in 4.23.5-10.el9_8
- samba-pidl Fixed in 4.23.5-10.el9_8
- samba-test Fixed in 4.23.5-10.el9_8
- samba-test-libs Fixed in 4.23.5-10.el9_8
- samba-tools Fixed in 4.23.5-10.el9_8
- samba-usershares Fixed in 4.23.5-10.el9_8
- samba-vfs-iouring Fixed in 4.23.5-10.el9_8
- samba-winbind Fixed in 4.23.5-10.el9_8
- samba-winbind-clients Fixed in 4.23.5-10.el9_8
- samba-winbind-krb5-locator Fixed in 4.23.5-10.el9_8
- samba-winbind-modules Fixed in 4.23.5-10.el9_8
- samba-winexe Fixed in 4.23.5-10.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- ldb-tools Fixed in 4.23.5-109.el10_2
- libldb Fixed in 4.23.5-109.el10_2
- libldb-devel Fixed in 4.23.5-109.el10_2
- libnetapi Fixed in 4.23.5-109.el10_2
- libnetapi-devel Fixed in 4.23.5-109.el10_2
- libsmbclient Fixed in 4.23.5-109.el10_2
- libsmbclient-devel Fixed in 4.23.5-109.el10_2
- libwbclient Fixed in 4.23.5-109.el10_2
- libwbclient-devel Fixed in 4.23.5-109.el10_2
- python3-ldb Fixed in 4.23.5-109.el10_2
- python3-samba Fixed in 4.23.5-109.el10_2
- python3-samba-dc Fixed in 4.23.5-109.el10_2
- python3-samba-test Fixed in 4.23.5-109.el10_2
- samba Fixed in 4.23.5-109.el10_2
- samba-client Fixed in 4.23.5-109.el10_2
- samba-client-libs Fixed in 4.23.5-109.el10_2
- samba-common Fixed in 4.23.5-109.el10_2
- samba-common-libs Fixed in 4.23.5-109.el10_2
- samba-common-tools Fixed in 4.23.5-109.el10_2
- samba-dc-libs Fixed in 4.23.5-109.el10_2
- samba-dcerpc Fixed in 4.23.5-109.el10_2
- samba-devel Fixed in 4.23.5-109.el10_2
- samba-gpupdate Fixed in 4.23.5-109.el10_2
- samba-krb5-printing Fixed in 4.23.5-109.el10_2
- samba-ldb-ldap-modules Fixed in 4.23.5-109.el10_2
- samba-libs Fixed in 4.23.5-109.el10_2
- samba-pidl Fixed in 4.23.5-109.el10_2
- samba-test Fixed in 4.23.5-109.el10_2
- samba-test-libs Fixed in 4.23.5-109.el10_2
- samba-tools Fixed in 4.23.5-109.el10_2
- samba-usershares Fixed in 4.23.5-109.el10_2
- samba-vfs-iouring Fixed in 4.23.5-109.el10_2
- samba-winbind Fixed in 4.23.5-109.el10_2
- samba-winbind-clients Fixed in 4.23.5-109.el10_2
- samba-winbind-krb5-locator Fixed in 4.23.5-109.el10_2
- samba-winbind-modules Fixed in 4.23.5-109.el10_2
- samba-winexe Fixed in 4.23.5-109.el10_2
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- samba Fixed in 2:4.17.12+dfsg-0+deb12u4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- samba Fixed in 2:4.22.8+dfsg-0+deb13u2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- samba Fixed in 2:4.24.3+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- samba Fixed in 2:4.15.13+dfsg-0ubuntu1.12
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- samba Fixed in 2:4.19.5+dfsg-4ubuntu9.6
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- samba Fixed in 2:4.22.3+dfsg-4ubuntu2.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- samba Fixed in 2:4.23.6+dfsg-1ubuntu2.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- samba No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- samba No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- samba No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- samba Fixed in 2:4.15.13+dfsg-0ubuntu0.20.04.8+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.