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VulnerabilityPublished

CVE-2024-34331: Parallels Desktop · Improper Privilege Management

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 62% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Sep 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

AI-suggested

To mitigate CVE-2024-34331, organizations should immediately upgrade Parallels Desktop to a version that includes a fix for this vulnerability once available. Until a patch is released, administrators should restrict the execution of untrusted macOS installers and monitor for unusual activity related to Parallels Service. Implement application whitelisting to prevent unauthorized installers from running. Limit the use of Parallels Service with setuid root privileges where possible, or run it with the least privileges necessary. Employ endpoint detection and response (EDR) solutions to detect privilege escalation attempts. Regularly audit and monitor system logs for suspicious behavior involving Parallels processes. Additionally, educate users about the risks of running untrusted installers and enforce strict policies on software installation. Network segmentation can also reduce the risk of lateral movement if a host is compromised.

Description

A lack of code signature verification in Parallels Desktop for Mac v19.3.0 and below allows attackers to escalate privileges via a crafted macOS installer, because Parallels Service is setuid root.

References

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