High severity · published Mar 24, 2026
CVE-2026-4775
Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing
7.8
CVSS
0.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat AI Inference Server 3.2 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat AI Inference Server 3.3 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 7 Extended Lifecycle Support · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 8.6 Telecommunications Update Service · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions · Red Hat
All versions, or not specified · source: vendor, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4775
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4775
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:12265
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:12271
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:14929
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:16055
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:19150
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:19363
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