CVE-2023-3953 — A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buff

A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists that could cause memory corruption when an authenticated user opens a tampered log file from GP-Pro EX.

01What is this vulnerability?

A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists that could cause memory corruption when an authenticated user opens a tampered log file from GP-Pro EX.

02Affected products

Vendor	Product	Versions
Schneider Electric	GP	Pro EX WinGP for iPC — v4.09.450 and prior
Schneider Electric	GP	Pro EX WinGP for PC/AT — v4.09.450 and prior

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

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

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: 2023-08-09T14:02:44.472Z
• Last modified: 2024-10-09T18:10:11.842Z

09References

• download.schneider-electric.com — https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-220-01&p_enDoc…