CVE-2021-36798
moderate-risk
Published 2021-08-09
A Denial-of-Service (DoS) vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it.
Do I need to act?
!
27.7% chance of exploitation in next 30 days
EPSS score — higher than 72% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (2)
Affected Vendors
References (4)
Release Notes
https://www.cobaltstrike.com/releasenotes.txt
Release Notes
https://www.cobaltstrike.com/releasenotes.txt
48
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
15/34 · Moderate
Exposure
7/34 · Low