CVE-2023-32538 — Stack-based buffer overflow vulnerability exists in TELLUS v4

Stack-based buffer overflow vulnerability exists in TELLUS v4.0.15.0 and TELLUS Lite v4.0.15.0. Opening a specially crafted SIM2 file may lead to information disclosure and/or arbitrary code execution. This vulnerability is different from CVE-2023-32273 and CVE-2023-32201.

01What is this vulnerability?

Stack-based buffer overflow vulnerability exists in TELLUS v4.0.15.0 and TELLUS Lite v4.0.15.0. Opening a specially crafted SIM2 file may lead to information disclosure and/or arbitrary code execution. This vulnerability is different from CVE-2023-32273 and CVE-2023-32201.

02Affected products

Vendor	Product	Versions
FUJI ELECTRIC CO., LTD. and Hakko Electronics Co., Ltd.	TELLUS and TELLUS Lite	v4.0.15.0 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

08Timeline

• Published: 2023-06-19T00:00:00.000Z
• Last modified: 2024-12-23T21:27:50.622Z

09References

• monitouch.fujielectric.com — https://monitouch.fujielectric.com/site/download-e/03tellus_inf/index.php
• jvn.jp — https://jvn.jp/en/vu/JVNVU98818508/