CVE-2021-21002
Denial of Service in Phoenix Contact FL COMSERVER UNI products
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.40
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.
Timeline
- CVE published
- Record last updated
Affected versions
- Phoenix Contact FL COMSERVER
From UNI 232/422/485 (2313452) · fixed in 2.40; From UNI 232/422/485-T (2904817) · fixed in 2.40