CVE-2023-27830 - Vulnerability Details - OpenCVE

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.

Published: 2023-04-12

Score: 9 Critical

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:tightvnc:tightvnc:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-31566	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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00421.

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://medium.com/nestedif/vulnerability-disclosure-privilege-escalation-tightvnc-8165208cce
https://www.tightvnc.com/news.php
https://www.tightvnc.com/whatsnew.php

History

Sat, 08 Feb 2025 03:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Tightvnc Tightvnc

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-04-12T00:00:00.000Z

Updated: 2025-02-08T02:40:24.901Z

Reserved: 2023-03-05T00:00:00.000Z

Link: CVE-2023-27830

Vulnrichment

Updated: 2024-08-02T12:23:29.465Z

NVD

Status : Modified

Published: 2023-04-12T15:15:12.830

Modified: 2025-02-08T03:15:10.200

Link: CVE-2023-27830

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-269

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