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CVE-2022-28291

22
FAUCET Score

CVE-2022-28291 is an Insufficiently Protected Credentials vulnerability affecting all versions of Tenable Nessus Essentials and Professional. An authenticated user with debug privileges can extract stored Nessus policy credentials in cleartext from the "nessusd" process via process dumping. This vulnerability has a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity that can lead to high confidentiality impact by compromising customer network assets. There is currently no public exploit code available, it is not listed in CISA's KEV catalog, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.64%
Probability of exploitation in next 30 days
EPSS Percentile
47.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0064 is in the 57th percentile among its peer group of 21,957 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cybersecurityworks.com / blog/zero-days/csw-expert-discovers-a-zero-day-vulnerability-in-tenables-nessus-scanner.html
ExploitThird Party Advisory