CVE-2019-12806

HIGH 8.8CVE-2019-12806 · Published 13/08/2019 · updated 17/06/2026

In short

CVE-2019-12806 is a HIGH (CVSS 8.8) vulnerability affecting unisign (crosscert).
Chance of exploitation in the next 30 days (EPSS): 4.1%, higher than 90.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
unisign crosscert	`≤ 2.0.4.0`	No fix yet

Description

UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, due to a buffer overflow in a library. That leads remote attacker to execute arbitrary code via crafted https packets.

References

boho.or.kr/krcert/secNoticeView.do · Third Party Advisory

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