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CVE-2021-20099

MEDIUMCVSS 6.7/10EPSS 0.32%

Last modified

CVE-2021-20099 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. Nessus Agent 8.2.4 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host. This is different than CVE-2021-20100.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

Nessus Agent 8.2.4 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host. This is different than CVE-2021-20100.

Metrics

CVSS 3.1
6.7/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.32%

23.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
TenableNessus<= 8.2.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20099?
Nessus Agent 8.2.4 and earlier for Windows were found to contain multiple local privilege escalation vulnerabilities which could allow an authenticated, local administrator to run specific Windows executables as the Nessus host. This is different than CVE-2021-20100.
How severe is CVE-2021-20099?
CVE-2021-20099 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20099?
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-2021-20099?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST