CVE-2021-20106: tenable nessus
CVSS: 8.5v2.0HighModified
Published 21-07-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-20106 is a high (CVSS 8.5) vulnerability in tenable nessus. EPSS estimates a 1.29% chance of exploitation in the next 30 days, higher than 69.8% of scored vulnerabilities.
CVSS score
8.5/10
010
High · v2.0 (NVD)EPSS score
1.29%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 21-07-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Nessus Agent versions 8.2.5 and earlier were found to contain a privilege escalation vulnerability which could allow a Nessus administrator user to upload a specially crafted file that could lead to gaining administrator privileges on the Nessus host.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
High 8.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
1.29%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.29% on 18-09-2026
18-09-202618-10-2026
EPSS score1.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Tenable1 product
- nessus≤ 8.2.5
1 vendor · 1 product