CVE-2021-20077
highpriority · track · 27OT risk · elevatedEPSS 0.003 · 28 %ileEUUSEPSS · scored 2026-10-28
Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.1–7.2
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2021-20077cnnvd
- https://vigilance.fr/vulnerability/Nessus-privilege-escalation-via-File-Upload-35011cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.0974cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.1141cnnvd
- https://www.tenable.com/security/tns-2021-04-0cnnvd
- https://www.tenable.com/security/tns-2021-07cnnvd
- https://www.tenable.com/security/tns-2021-04-0enisa_euvd
- https://www.tenable.com/security/tns-2021-07enisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan