CVE-2021-33576
highpriority · track · 40EPSS 0.015 · 75 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.mdcnnvd
- https://www.cleo.com/cleo-lexicomcnnvd
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.mdenisa_euvd
- https://www.cleo.com/cleo-lexicomenisa_euvd
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.mdExploitThird Party Advisorynvd
- https://www.cleo.com/cleo-lexicomProductnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan