CVE Tools
Sign in

CVE-2026-4775

Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing

Published: Mar 24, 2026Updated: Jun 15, 2026 Sources: CVE List NVDCWE-190
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.3%
Top 75.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

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 Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190

Affected Products

libtifflibtiffOSS Libraries
hardened imagesredhat
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 10Red Hat
On-premOS
Operating Systems / linux-distro
libtiffoss-projectOSS Librariesaka libtiff project
redhatcommercialUSOperating Systemsaka red hat
debianoss-projectGBOperating Systemsaka debian gnu/linux
red hatcommercialUSOperating Systemsaka red hat
and 18 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:12265
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:12271
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:14929
access.redhat.com
and 21 more references View all →

Timeline

Published
Mar 24, 2026
Last Updated
Jun 15, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-4775 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows