CVE-2026-4775
What it is
A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.6% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-190 · Integer overflow
- Record status
- Analyzed
Affected
- Libtiff < 4.7.2
- Debian Linux 11.0
- Redhat Ai Inference Server < 3.2.2
- Redhat Ai Inference Server < 3.3.5
- Redhat Codeready Linux Builder 8.0
- Redhat Codeready Linux Builder 9.0
- Redhat Codeready Linux Builder 10.0
- Redhat Codeready Linux Builder Eus 9.4
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-4775.md and follow it. Check whether this project is affected by CVE-2026-4775. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://access.redhat.com/errata/RHSA-2026:12265
- https://access.redhat.com/errata/RHSA-2026:12271
- https://access.redhat.com/errata/RHSA-2026:14929
- https://access.redhat.com/errata/RHSA-2026:16055
- https://access.redhat.com/errata/RHSA-2026:19150
- https://access.redhat.com/errata/RHSA-2026:19363
- https://access.redhat.com/errata/RHSA-2026:19585
- https://access.redhat.com/errata/RHSA-2026:19586
- https://access.redhat.com/errata/RHSA-2026:19604
- https://access.redhat.com/errata/RHSA-2026:19608
References
- https://access.redhat.com/errata/RHSA-2026:12265
- https://access.redhat.com/errata/RHSA-2026:12271
- https://access.redhat.com/errata/RHSA-2026:14929
- https://access.redhat.com/errata/RHSA-2026:16055
- https://access.redhat.com/errata/RHSA-2026:19150
- https://access.redhat.com/errata/RHSA-2026:19363
- https://access.redhat.com/errata/RHSA-2026:19585
- https://access.redhat.com/errata/RHSA-2026:19586
- https://access.redhat.com/errata/RHSA-2026:19604
- https://access.redhat.com/errata/RHSA-2026:19608
- https://access.redhat.com/errata/RHSA-2026:19609
- https://access.redhat.com/errata/RHSA-2026:19657
- https://access.redhat.com/errata/RHSA-2026:19659
- https://access.redhat.com/errata/RHSA-2026:19702
- https://access.redhat.com/errata/RHSA-2026:20583
- https://access.redhat.com/errata/RHSA-2026:20585
- https://access.redhat.com/errata/RHSA-2026:20591
- https://access.redhat.com/errata/RHSA-2026:20592
- https://access.redhat.com/errata/RHSA-2026:24992
- https://access.redhat.com/errata/RHSA-2026:25096
- https://access.redhat.com/errata/RHSA-2026:25910
- https://access.redhat.com/errata/RHSA-2026:30078
- https://access.redhat.com/errata/RHSA-2026:30087
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:30089