Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-28140

22
FAUCET Score

CVE-2023-28140 describes an Executable Hijacking vulnerability in Qualys Cloud Agent for Windows versions prior to 4.5.3.1. This flaw allows a local attacker to load a malicious DLL instead of an expected one during uninstallation, potentially with escalated privileges. Rated High severity with a CVSS score of 7.0, the attack requires user interaction and high attack complexity, but can lead to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.1.3.34, < 4.5.3.1CPE matchmatch criteria
cpe:2.3:a:qualys:cloud_agent:*:*:*:*:*:windows:*:*
>= 3.1.3.34, < 4.5.3.1CPE match
cpe:2.3:a:qualys:cloud_agent:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 7th percentile among its peer group of 386 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

mozillapatch availablevia llm_extracted
Fixed in: 4.5.3.1
nessuspatch availablevia llm_extracted
Fixed in: 4.5.3.1
View patch
netgearpatch availablevia llm_extracted
Fixed in: 4.5.3.1
View patch
pfsensepatch availablevia llm_extracted
Fixed in: 4.5.3.1
View patch
gcpvendor investigatingvia llm_extracted
Fixed in: 4.5.3.1
View patch
m2teamvendor investigatingvia llm_extracted
View patch

Vendor Advisories (6)

pfsensellm-pfsense-574e14925a9511b1

Possible Executable Hijacking of Qualys Cloud Agent for Windows prior to 4.5.3.1 [CVE-2023-28140]

Apr 18, 2023
mozillallm-mozilla-7cc8ecc05914136a

Possible Executable Hijacking of Qualys Cloud Agent for Windows prior to 4.5.3.1 [CVE-2023-28140]

Apr 18, 2023
netgearllm-netgear-97d316a82a3a3c1b

Possible Executable Hijacking of Qualys Cloud Agent for Windows prior to 4.5.3.1 [CVE-2023-28140]

Apr 18, 2023
m2teamllm-m2team-e8bd42f9779f8918

Possible Executable Hijacking of Qualys Cloud Agent for Windows prior to 4.5.3.1 [CVE-2023-28140]

Apr 18, 2023
gcpllm-gcp-11d80ce7fc101cf1

Possible Executable Hijacking of Qualys Cloud Agent for Windows prior to 4.5.3.1 [CVE-2023-28140]

Apr 18, 2023
nessusllm-nessus-6225b56c2b26c22b

Possible Executable Hijacking of Qualys Cloud Agent for Windows prior to 4.5.3.1 [CVE-2023-28140]

Apr 18, 2023

References

qualys.com / security-advisories
Vendor Advisory