CVE-2025-67125

A signed integer overflow in docopt.cpp v0.6.2 (LeafPattern::match in docopt_private.h) when merging occurrence counters (e.g., default LONG_MAX + first user "-v/--verbose") can cause counter wrap (negative/unbounded semantics) and lead to logic/policy bypass in applications that rely on occurrence-based limits, rate-gating, or safety toggles. In hardened builds (e.g., UBSan or -ftrapv), the overflow may also result in process abort (DoS).
Configurations

No configuration.

History

No history.

Information

Published : 2026-01-23 16:15

Updated : 2026-01-26 15:03


NVD link : CVE-2025-67125

Mitre link : CVE-2025-67125

CVE.ORG link : CVE-2025-67125


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Products Affected

No product.

CWE
CWE-190

Integer Overflow or Wraparound