What’s Vulnerable › Vulnerabilities

CVE-1999-1540

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-10-04 · updated 2026-06-16

Description

shell-lock in Cactus Software Shell Lock uses weak encryption (trivial encoding) which allows attackers to easily decrypt and obtain the source code.

Affected products

• Cactus Software Shell-Lock: all versions

References

• http://marc.info/?l=bugtraq&m=93916168802365&w=2
• http://www.atstake.com/research/advisories/1999/shell-lock.txt
• https://exchange.xforce.ibmcloud.com/vulnerabilities/3356
• http://marc.info/?l=bugtraq&m=93916168802365&w=2
• http://www.atstake.com/research/advisories/1999/shell-lock.txt
• https://exchange.xforce.ibmcloud.com/vulnerabilities/3356

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