What’s Vulnerable › Vulnerabilities

CVE-2017-7523

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-07-21 · updated 2026-06-17
• Weakness: CWE-787

Description

Cygwin versions 1.7.2 up to and including 1.8.0 are vulnerable to buffer overflow vulnerability in wcsxfrm/wcsxfrm_l functions resulting into denial-of-service by crashing the process or potential hijack of the process running with administrative privileges triggered by specially crafted input string.

Affected products

• Red Hat, Inc. cygwin: 1.7.2, 1.7.3, 1.7.5, 1.7.6, 1.7.7, 1.7.8 (+26)

References

• https://cygwin.com/ml/cygwin/2017-05/msg00149.html
• https://cygwin.com/ml/cygwin/2017-05/msg00149.html

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