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01 Record

CVE-2023-31239

Stack-based buffer overflow vulnerability in V-Server v4.0.15.0 and V-Server Lite v4.0.15.0 and earlier allows an attacker to execute arbitrary code by having user open a specially crafted VPR file.

HighPUBLISHEDCNA: jpcert
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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02 Description

Stack-based buffer overflow vulnerability in V-Server v4.0.15.0 and V-Server Lite v4.0.15.0 and earlier allows an attacker to execute arbitrary code by having user open a specially crafted VPR file.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 18.3% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-06-19 00:00Z3 YR AGO
Last updated
2024-12-23 21:34Z1 YR AGO
Reserved
2023-05-11
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
Data version
5.1
Document digest
2554cc8c60cd9d5cecf1cb29abb7856402ba295f576291c6605e2e3ca9ee0632

05 Affected products

VendorProductVersionsPlatforms
FUJI ELECTRIC CO., LTD. and Hakko Electronics Co., Ltd.V-Server and V-Server Litev4.0.15.0 and earlier—

06 References