CWE-191Base

Integer Underflow (Wrap or Wraparound)

Draft in the CWE catalog · 357 CVEs mapped

357
CVEs mapped
7.5
Median CVSS
What it is

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Recent examples
7.5cvss
CVE-2026-85436

CVE-2026-85436 - HIGH Severity Vulnerability

MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can send crafted UDP packets to the configured UDPListen port to trigger an oversized memcpy operation that writes past the destination buffer, causing heap corruption and denial of service.

HIGHno explanation yet
1%
epss
none
CVE-2026-9624

CVE-2026-9624 - UNKNOWN Severity Vulnerability

A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data length validation, requiring a  restart of the service to recover.

no explanation yet
0%
epss
none
CVE-2026-9622

CVE-2026-9622 - UNKNOWN Severity Vulnerability

A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.

no explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-191
Abstraction
Base
Structure
Simple
Status
Draft