CVE-2026-4739 CRITICAL

CVE-2026-4739: Integer overflow vulnerabilities in InsightSoftwareConsortium/ITK

Vendor Insightsoftwareconsortium

Product ITK

Weakness CWE-190

Published March 24, 2026

Last update March 24, 2026

View on NVD All CVEs

CVSS base score

9.4/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction —

Confidentiality —

Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:P/AU:Y/R:U/V:C/RE:M/U:Amber

What the vulnerability does

01Description

Integer Overflow or Wraparound vulnerability in InsightSoftwareConsortium ITK (‎Modules/ThirdParty/Expat/src/expat modules).This issue affects ITK: before 2.7.1.

Key dates

02Disclosure timeline

March 24, 2026 CVE published

March 24, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-4739 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/190.html

Related vulnerabilities

CVE-2026-4739: Integer overflow vulnerabilities in InsightSoftwareConsortium/ITK

01Description

02Disclosure timeline

03References

04Related CVE