Privilege escalation via PVMP entry path traversal
Published Jun 3, 2025 · Updated Jun 3, 2025
Path traversal in Parallels Desktop for Mac 20.2.2 (55879) allows local users to write arbitrary files through a crafted PVMP package. The root-privileged prl_disp_service launches prl_packer_inplace, which accepts ../ segments in PVMP entry paths and extracts them outside the package directory. Low-privileged local access is sufficient to overwrite root-controlled files and escalate privileges to root.
Summary
What happened
Path traversal in Parallels Desktop for Mac 20.2.2 (55879) allows local users to write arbitrary files through a crafted PVMP package. The root-privileged prl_disp_service launches prl_packer_inplace, which accepts ../ segments in PVMP entry paths and extracts them outside the package directory. Low-privileged local access is sufficient to overwrite root-controlled files and escalate privileges to root.
The record
- CVE
- CVE-2025-31359
- Published
- Jun 3, 2025
- Updated
- Jun 3, 2025
- Vendor
- Parallels
- Product
- Parallels Desktop
- Classifications
- CWE-22, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 3, 2025CVE publishedPublication date reported by the CVE source.
- Jun 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=20.2.2 (55879)
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Cisco Talos PVMP traversal demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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