CVE-2025-43079: Qualys Agent · Untrusted Search Path
Affects Qualys AgentSource CVE Database V5
Not known to be exploited · CVSS 6.3 Medium.
Data as of 26 Oct 2026, 15:59 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Qualys Inc Qualys Agent | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-43079, organizations should: 1) Avoid running the Qualys Agent uninstall script with elevated privileges unless absolutely necessary and ensure it is executed in a controlled environment with a sanitized and secure $PATH variable. 2) Modify or replace the uninstall script to use absolute paths for all system commands and explicitly sanitize or reset the $PATH environment variable before execution. 3) Restrict access to the uninstall script to trusted administrators only and monitor its execution closely. 4) Implement strict privilege management policies to limit which users have sudo or root access, reducing the risk of malicious $PATH manipulation. 5) Conduct regular audits of environment variables and script execution contexts on critical systems. 6) Engage with Qualys for any available patches or updated versions that address this vulnerability and plan timely upgrades once available. 7) Employ endpoint detection and response (EDR) tools to detect anomalous command executions or privilege escalations related to the uninstall process. These steps go beyond generic advice by focusing on script hardening, environment control, and privilege restriction specific to this vulnerability.
Description
The Qualys Cloud Agent included a bundled uninstall script (qagent_uninstall.sh), specific to Mac and Linux supported versions that invoked multiple system commands without using absolute paths and without sanitizing the $PATH environment. If the uninstall script is executed with elevated privileges (e.g., via sudo) in an environment where $PATH has been manipulated, an attacker with root/sudo privileges could cause malicious executables to be run in place of the intended system binaries. This behavior can be leveraged for local privilege escalation and arbitrary command execution under elevated privileges.