Out-of-bounds write vulnerability in Remote Desktop Functionality in Synology VPN Plus…
Priority HIGH 66Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.16841 97th percentileScored 2026-11-07
Fix Fixed VPN Plus Server (Synology): 1.4.4-0635, 1.4.3-0534
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Synology | VPN Plus Server | before 1.4.4-0635; before 1.4.3-0534 | 1.4.4-0635, 1.4.3-0534 | Patch available | CNA |
- VPN Plus Server VendorSynology Affected before 1.4.4-0635; before 1.4.3-0534 Fixed in 1.4.4-0635, 1.4.3-0534 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:synology:vpn_plus_server:*:*:*:*:*:*:*:* | before 1.4.3-0534 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.2:*:*:*:*:*:*:* | 1.2 | Running on | Synology |
| cpe:2.3:a:synology:vpn_plus_server:*:*:*:*:*:*:*:* | before 1.4.4-0635 | Vulnerable | Synology |
| cpe:2.3:o:synology:router_manager:1.3:*:*:*:*:*:*:* | 1.3 | Running on | Synology |
- cpe:2.3:a:synology:vpn_plus_server:*:*:*:*:*:*:*:* Versions before 1.4.3-0534 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.2:*:*:*:*:*:*:* Versions 1.2 Running on ·Synology
- cpe:2.3:a:synology:vpn_plus_server:*:*:*:*:*:*:*:* Versions before 1.4.4-0635 Vulnerable ·Synology
- cpe:2.3:o:synology:router_manager:1.3:*:*:*:*:*:*:* Versions 1.3 Running on ·Synology
Remediation
- Fix · CNA VPN Plus Server (Synology) Fixed in 1.4.4-0635, 1.4.3-0534
Timeline
- 2026-10-02 Threatist record created from CVE-2022-43931
- 2026-10-03 Alias added: GHSA-xvg3-q6r5-8fhf
References
Advisory 1
Sources
- CVE-2022-43931 · CVE Program
- CVE-2022-43931 · NVD
- FIRST EPSS
- GHSA-xvg3-q6r5-8fhf · GitHub Advisory Database · CC BY 4.0
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