CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2021-30116: Kaseya Virtual System/Server Administrator (VSA) Information Disclosure Vulnerability

criticalknown exploitedpublic exploitCVE-2021-30116
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Kaseya Virtual System/Server Administrator (VSA) contains an information disclosure vulnerability allowing an attacker to obtain the sessionId that can be used to execute further attacks against the system.

CSIRTS triage

vendor: Kaseyaproduct: Virtual System/Server Administrator (VSA)Information disclosure
What
Kaseya VSA contains an information disclosure vulnerability allowing an attacker to obtain the sessionId for further attacks.
Who is affected
Deployments of Kaseya VSA are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest version of Kaseya VSA.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Virtual System/Server Administrator (VSA)

Get an email when a new Virtual System/Server Administrator (VSA) advisory drops — max one per day, one-click unsubscribe.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-30116

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-30116coverage & exploitation statusNVD · CVE.org

More from CISA Known Exploited Vulnerabilities