CVE-2026-4775 — Integer Overflow or Wraparound in Tiff

CWE-190 — Integer Overflow or Wraparound8 documents8 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 73.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Debian TiffMsrc Azl3 Libtiff 4.6.0-12 ON Azure Linux 3.0Msrc Cbl2 Libtiff 4.6.0-12 ON CBL Mariner 2.0
Timeline
PublishedMar 24
Latest updateApr 9

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:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/tiff< tiff 4.5.0-6+deb12u4 (bookworm)

🔴Vulnerability Details

3
VulDB
LibTIFF TIFF File Parser putcontig8bitYCbCr44tile integer overflow (Nessus ID 303486 / WID-SEC-2026-1031)↗2026-04-09
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OSV
CVE-2026-4775: A flaw was found in the libtiff library↗2026-03-24
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GHSA
GHSA-cm99-m826-vgg7: A flaw was found in the libtiff library↗2026-03-24
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📋Vendor Advisories

3
Red Hat
libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing↗2026-03-24
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Microsoft
Libtiff: libtiff: arbitrary code execution or denial of service via signed integer overflow in tiff file processing↗2026-03-10
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Debian
CVE-2026-4775: tiff - A flaw was found in the libtiff library. A remote attacker could exploit a signe...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-4775 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-4775 — Integer Overflow or Wraparound in Tiff | cvebase