What’s Vulnerable › Vulnerabilities

CVE-2021-33576

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-18 · updated 2026-06-17
• Weakness: CWE-22

Description

An issue was discovered in Cleo LexiCom 5.5.0.0. Within the AS2 message, the sender can specify a filename. This filename can include path-traversal characters, allowing the file to be written to an arbitrary location on disk.

Affected products

• Cleo Lexicom: 5.5.0.0

References

• https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
• https://www.cleo.com/cleo-lexicom
• https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.md
• https://www.cleo.com/cleo-lexicom

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