What’s Vulnerable › Vulnerabilities

CVE-2025-63927

• Severity: medium (CVSS 4.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-12 · updated 2026-06-17
• Weakness: CWE-122

Description

A heap-use-after-free vulnerability exists in airpig2011 IEC104 thru Commit be6d841 (2019-07-08). During multi-threaded client execution, the function Iec10x_Scheduled can access memory that has already been freed, potentially causing program crashes or undefined behavior. This may be exploited to trigger a denial-of-service or memory corruption.

Affected products

• Airpig2011 Iec104: through 2019-07-08

References

• https://github.com/airpig2011/IEC104/issues/20
• https://songsong.host/mybugs/CVE-2025-63927.html

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