How severe is CVE-2023-28142?

CVE-2023-28142 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-28142 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28142?

CVE-2023-28142 affects Qualys Cloud Agent. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28142?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-28142 published?

CVE-2023-28142 was published on 2023-04-18 and last updated on 2026-06-17.

CVE-2023-28142

CVE-2023-28142 is a medium-severity vulnerability in Qualys Cloud Agent with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Qualys Cloud Agent
Published: 2023-04-18
Last modified: 2026-06-17

Description

A Race Condition exists in the Qualys Cloud Agent for Windows platform in versions from 3.1.3.34 and before 4.5.3.1. This allows attackers to escalate privileges limited on the local machine during uninstallation of the Qualys Cloud Agent for Windows. Attackers may gain SYSTEM level privileges on that asset to run arbitrary commands. At the time of this disclosure, versions before 4.0 are classified as End of Life.

Frequently asked questions

What is CVE-2023-28142?: A Race Condition exists in the Qualys Cloud Agent for Windows platform in versions from 3.1.3.34 and before 4.5.3.1. This allows attackers to escalate privileges limited on the local machine during uninstallation of the Qualys Cloud Agent for Windows. Attackers may gain SYSTEM level privileges on that asset to run arbitrary commands. At the time of this disclosure, versions before 4.0 are classified as End of Life.
How severe is CVE-2023-28142?: CVE-2023-28142 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-28142 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28142?: CVE-2023-28142 affects Qualys Cloud Agent. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28142?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28142 published?: CVE-2023-28142 was published on 2023-04-18 and last updated on 2026-06-17.

References

https://www.qualys.com/security-advisories/

Affected products (1)

cpe:2.3:a:qualys:cloud_agent:*:*:*:*:*:windows:*:*

More vulnerabilities in Qualys Cloud Agent

CVE-2023-28143 — Medium (CVSS 6.7): Qualys Cloud Agent for macOS (versions 2.5.1-75 before 3.7) installer allows a local escalation of privilege bounded…
CVE-2023-28141 — Medium (CVSS 6.7): An NTFS Junction condition exists in the Qualys Cloud Agent for Windows platform in versions before 4.8.0.31. Attackers…
CVE-2023-28140 — Medium (CVSS 6.7): An Executable Hijacking condition exists in the Qualys Cloud Agent for Windows platform in versions before 4.5.3.1.…
CVE-2022-29550 — Medium (CVSS 5.5): An issue was discovered in Qualys Cloud Agent 4.8.0-49. It writes "ps auxwwe" output to the…

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Other CWE-362 (Race Condition) vulnerabilities

CVE-2022-27626 — Critical (CVSS 10.0): A vulnerability regarding concurrent execution using shared resource with improper synchronization ('Race Condition')…
CVE-2015-8556 — Critical (CVSS 10.0): Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.
CVE-2014-0703 — Critical (CVSS 10.0): Cisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition…
CVE-2010-1228 — Critical (CVSS 10.0): Multiple race conditions in the sandbox infrastructure in Google Chrome before 4.1.249.1036 have unspecified impact and…
CVE-2008-6598 — Critical (CVSS 10.0): Multiple race conditions in WANPIPE before 3.3.6 have unknown impact and attack vectors related to "bri restart logic."
CVE-2026-46137 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential…

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