CVE-2023-47584 — Out-of-bounds write vulnerability exists in V-Server V4

Out-of-bounds write vulnerability exists in V-Server V4.0.18.0 and earlier and V-Server Lite V4.0.18.0 and earlier. If a user opens a specially crafted VPR file, information may be disclosed and/or arbitrary code may be executed.

01What is this vulnerability?

Out-of-bounds write vulnerability exists in V-Server V4.0.18.0 and earlier and V-Server Lite V4.0.18.0 and earlier. If a user opens a specially crafted VPR file, information may be disclosed and/or arbitrary code may be executed.

02Affected products

Vendor	Product	Versions
FUJI ELECTRIC CO., LTD. and Hakko Electronics Co., Ltd.	V	Server — V4.0.18.0 and earlier
FUJI ELECTRIC CO., LTD. and Hakko Electronics Co., Ltd.	V	Server Lite — V4.0.18.0 and earlier

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-11-15T06:03:19.425Z
• Last modified: 2024-08-29T15:15:45.277Z

09References

• monitouch.fujielectric.com — https://monitouch.fujielectric.com/site/download-e/03tellus_inf/index.php
• hakko-elec.co.jp — https://hakko-elec.co.jp/site/download/03tellus_inf/index.php
• jvn.jp — https://jvn.jp/en/vu/JVNVU93840158/