CVE-2023-27830

Public Exploit

Description

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.

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.10%
Third-Party Advisory medium.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.tightvnc.com/whatsnew.php product release notes
https://medium.com/nestedif/vulnerability-disclosure-privilege-escalation-tightvnc-8165208cce third party advisory exploit
https://www.tightvnc.com/news.php product release notes

Frequently Asked Questions

What is the severity of CVE-2023-27830?
CVE-2023-27830 has been scored as a critical severity vulnerability.
How to fix CVE-2023-27830?
To fix CVE-2023-27830, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-27830 being actively exploited in the wild?
It is possible that CVE-2023-27830 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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