Vulnerability details
CVE-2026-4775
Red Hat Enterprise Linux 6
Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing
CVSS 3.1
7.8High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 6 | All | CVEProject cvelistV5 (CNA) |
References and advisories
32- https://access.redhat.com/errata/RHSA-2026:33388 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74674 vendor-advisoryx_refsource_REDHAT
- https://lists.debian.org/debian-lts-announce/2026/04/msg00016.html
- https://access.redhat.com/security/cve/CVE-2026-4775 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2450768 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4775.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:24992 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:25910 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19586 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:12265 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19150 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:20585 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:16055 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:20583 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19659 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:20591 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19657 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:20592 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19604 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19608 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19609 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19702 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19585 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:12271 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19363 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:14929 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:25096 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:30078 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:30089 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:30088 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:30087 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:30349 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-03-24
- Last updated
- 2026-11-05
- State
- Published
- Assigner (CNA)
- redhat
Exploit prediction (EPSS)
0.57%
Probability of exploitation in 30 days
47.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-190Integer Overflow or Wraparound