CVE-2026-4775
Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing
02 Description
Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing
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
- 0.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 46.9% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-26.
- 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
- 2026-03-24 14:42Z7 MO AGO
- Last updated
- 2026-10-02 02:05Z27 DAYS AGO
- Reserved
- 2026-03-24
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.2
- Document digest
- ac0cb626104fc7fb75980c2fa6601a3e0af69fb5890b51396294484cd742404d
05 Affected products
06 References
- access.redhat.comRHSA-2026:12265https://access.redhat.com/errata/RHSA-2026:12265
- access.redhat.comRHSA-2026:12271https://access.redhat.com/errata/RHSA-2026:12271
- access.redhat.comRHSA-2026:14929https://access.redhat.com/errata/RHSA-2026:14929
- access.redhat.comRHSA-2026:16055https://access.redhat.com/errata/RHSA-2026:16055
- access.redhat.comRHSA-2026:19150https://access.redhat.com/errata/RHSA-2026:19150
- access.redhat.comRHSA-2026:19363https://access.redhat.com/errata/RHSA-2026:19363
- access.redhat.comRHSA-2026:19585https://access.redhat.com/errata/RHSA-2026:19585
- access.redhat.comRHSA-2026:19586https://access.redhat.com/errata/RHSA-2026:19586
- access.redhat.comRHSA-2026:19604https://access.redhat.com/errata/RHSA-2026:19604
- access.redhat.comRHSA-2026:19608https://access.redhat.com/errata/RHSA-2026:19608
- access.redhat.comRHSA-2026:19609https://access.redhat.com/errata/RHSA-2026:19609
- access.redhat.comRHSA-2026:19657https://access.redhat.com/errata/RHSA-2026:19657
- access.redhat.comRHSA-2026:19659https://access.redhat.com/errata/RHSA-2026:19659
- access.redhat.comRHSA-2026:19702https://access.redhat.com/errata/RHSA-2026:19702
- access.redhat.comRHSA-2026:20583https://access.redhat.com/errata/RHSA-2026:20583
- access.redhat.comRHSA-2026:20585https://access.redhat.com/errata/RHSA-2026:20585
- access.redhat.comRHSA-2026:20591https://access.redhat.com/errata/RHSA-2026:20591
- access.redhat.comRHSA-2026:20592https://access.redhat.com/errata/RHSA-2026:20592
- access.redhat.comRHSA-2026:24992https://access.redhat.com/errata/RHSA-2026:24992
- access.redhat.comRHSA-2026:25096https://access.redhat.com/errata/RHSA-2026:25096
- access.redhat.comRHSA-2026:25910https://access.redhat.com/errata/RHSA-2026:25910
- access.redhat.comRHSA-2026:30078https://access.redhat.com/errata/RHSA-2026:30078
- access.redhat.comRHSA-2026:30087https://access.redhat.com/errata/RHSA-2026:30087
- access.redhat.comRHSA-2026:30088https://access.redhat.com/errata/RHSA-2026:30088
- access.redhat.comRHSA-2026:30089https://access.redhat.com/errata/RHSA-2026:30089
- access.redhat.comRHSA-2026:30349https://access.redhat.com/errata/RHSA-2026:30349
- access.redhat.comRHSA-2026:33388https://access.redhat.com/errata/RHSA-2026:33388
- access.redhat.comRHSA-2026:74674https://access.redhat.com/errata/RHSA-2026:74674
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-4775
- bugzilla.redhat.comRHBZ#2450768https://bugzilla.redhat.com/show_bug.cgi?id=2450768
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2026/04/msg00016.html
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4775.json
07 Fixed in
AlmaLinux 8
- compat-libtiff3 Fixed in 3.9.4-15.el8_10
- libtiff Fixed in 4.0.9-37.el8_10
- libtiff-devel Fixed in 4.0.9-37.el8_10
- libtiff-tools Fixed in 4.0.9-37.el8_10
- mingw32-libtiff Fixed in 4.0.9-4.el8_10
- mingw32-libtiff-static Fixed in 4.0.9-4.el8_10
- mingw64-libtiff Fixed in 4.0.9-4.el8_10
- mingw64-libtiff-static Fixed in 4.0.9-4.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
- libtiff Fixed
A version is affected if any line below covers it.
- Affected before 4.4.0-15.el9_7.3
- Affected before 4.4.0-18.el9_8
- libtiff-devel Fixed
A version is affected if any line below covers it.
- Affected before 4.4.0-15.el9_7.3
- Affected before 4.4.0-18.el9_8
- libtiff-tools Fixed
A version is affected if any line below covers it.
- Affected before 4.4.0-15.el9_7.3
- Affected before 4.4.0-18.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
- libtiff Fixed
A version is affected if any line below covers it.
- Affected before 4.6.0-6.el10_1.3
- Affected before 4.6.0-8.el10_2.1
- libtiff-devel Fixed
A version is affected if any line below covers it.
- Affected before 4.6.0-6.el10_1.3
- Affected before 4.6.0-8.el10_2.1
- libtiff-tools Fixed
A version is affected if any line below covers it.
- Affected before 4.6.0-6.el10_1.3
- Affected before 4.6.0-8.el10_2.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- compat-libtiff3 Fixed in 3.9.4-15.el8_10
- libtiff Fixed in 4.0.9-37.el8_10
- libtiff-devel Fixed in 4.0.9-37.el8_10
- libtiff-tools Fixed in 4.0.9-37.el8_10
- mingw32-libtiff Fixed in 4.0.9-4.el8_10
- mingw32-libtiff-static Fixed in 4.0.9-4.el8_10
- mingw64-libtiff Fixed in 4.0.9-4.el8_10
- mingw64-libtiff-static Fixed in 4.0.9-4.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
- libtiff Fixed
A version is affected if any line below covers it.
- Affected before 4.4.0-15.el9_7.3
- Affected before 4.4.0-18.el9_8
- libtiff-devel Fixed
A version is affected if any line below covers it.
- Affected before 4.4.0-15.el9_7.3
- Affected before 4.4.0-18.el9_8
- libtiff-tools Fixed
A version is affected if any line below covers it.
- Affected before 4.4.0-15.el9_7.3
- Affected before 4.4.0-18.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
- libtiff Fixed
A version is affected if any line below covers it.
- Affected before 4.6.0-6.el10_1.3
- Affected before 4.6.0-8.el10_2.1
- libtiff-devel Fixed
A version is affected if any line below covers it.
- Affected before 4.6.0-6.el10_1.3
- Affected before 4.6.0-8.el10_2.1
- libtiff-tools Fixed
A version is affected if any line below covers it.
- Affected before 4.6.0-6.el10_1.3
- Affected before 4.6.0-8.el10_2.1
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
- tiff Fixed in 4.5.0-6+deb12u4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- tiff Fixed in 4.7.0-3+deb13u2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- tiff Fixed in 4.7.1-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- neuron No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- neuron No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- neuron No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- qtwebengine-opensource-src No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- gdal No fix yet
- tiff 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
- gdal No fix yet
- tiff 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
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
- tiff 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
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
- tiff No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- qtwebengine-opensource-src No fix yet
- texmaker No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 26.04 LTS
- qtwebengine-opensource-src No fix yet
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.