CVE-2022-43931 | BDVDB-2026-192154 Detail

SynologyVPN Plus Server

Description#

Out-of-bounds write vulnerability in Remote Desktop Functionality in Synology VPN Plus Server before 1.4.3-0534 and 1.4.4-0635 allows remote attackers to execute arbitrary commands via unspecified vectors.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-787 Out-of-bounds Write

References#

https://www.synology.com/en-global/security/advisory/Synology_SA_22_26

Exploit#

No public exploit known

History#

Version 12023-01-03Record published in the CVE List.
Version 22025-04-10Most recent update recorded in the CVE List.

Published

Published: 2023-01-03
Last modified: 2025-04-10

Vendor information

Vendor: Synology
Product: VPN Plus Server

All Synology vulnerabilities

Score

10.0 Critical

EPSS

16.8%, Moderate

Estimated chance of exploitation in the next 30 days. EPSS percentile: 97.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.4.4-0635
Fixed
1.4.4-0635
Vulnerable
< 1.4.3-0534
Fixed
1.4.3-0534

Scoring System

CVSS v4.0

Not available

CVSS v3.1

10.0 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).