CVE-2023-27830

TightVNC: Improper Privilege Management

CVE-2023-27830 is fixed in TightVNC on 1 platform by TightVNC 2.8.78 (version 2.8.78), released March 28, 2023. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

9.0

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0108

65th percentile

TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing legitimate files with crafted files when executing a file transfer. This is due to the fact that TightVNC runs in the backend as a high-privileges account.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
TightVNC	2.8.78	TightVNC 2.8.78	Mar 28, 2023

Details

Published
April 12, 2023
Weakness
CWE-269: Improper Privilege Management
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-27830

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