CVE-2021-20076

8.8 highEPSS 2.1%

High (8.8) in tenable tenable.sc. EPSS 2.1% chance of exploitation in the next 30 days.

Tenable.sc and Tenable.sc Core versions 5.13.0 through 5.17.0 were found to contain a vulnerability that could allow an authenticated, unprivileged user to perform Remote Code Execution (RCE) on the Tenable.sc server via Hypertext Preprocessor unserialization.

Severity

CVSS 3.1

8.8 high

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

EPSS: 2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2021-03-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenable:tenable.sc

References

https://www.tenable.com/security/tns-2021-03
https://www.tenable.com/security/tns-2021-03

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