CVE-2019-18822

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-04-14 · updated 2026-06-17
Weakness: CWE-269

Description

A privilege escalation vulnerability in ZOOM Call Recording 6.3.1 allows its user account (i.e., the account under which the program runs - by default, the callrec account) to elevate privileges to root by abusing the callrec-rs@.service. The callrec-rs@.service starts the /opt/callrec/bin/rs binary with root privileges, and this binary is owned by callrec. It can be replaced by a Trojan horse.

Affected products

Eleveo Call Recording: 6.3.1

References

https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-18822-PrivEscal-ZoomCallRecording
https://www.zoomint.com/solutions/call-recording
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-18822-PrivEscal-ZoomCallRecording
https://www.zoomint.com/solutions/call-recording

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