Vulnerability identifier: #VU77089

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-31239

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
V-Server
Server applications / Web servers
V-Server Lite
Server applications / Web servers

Vendor: Fuji Electric

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can trick a victim to open a specially crafted VPR file, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

V-Server: 4.0.15.0

V-Server Lite: 4.0.15.0

---

External links
http://jvn.jp/en/vu/JVNVU98818508/index.html

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.