CVE-2021-33576
CRITICALCVSS 9.8/10EPSS 1.55%
Last modified
CVE-2021-33576 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Cleo LexiCom 5.5.0.0. Within the AS2 message, the sender can specify a filename. EPSS estimates a 1.55% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cleo | Lexicom | 5.5.0.0 |
References
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.mdExploit, Third Party Advisory
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0011.mdExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33576?
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.
How severe is CVE-2021-33576?
CVE-2021-33576 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.55% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33576?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-33576?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST