Buffer overflow in Schneider Electric Modicon M340 CPU (Part Numbers Bmxp34*)
CVE-2024-8938
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists that could cause a potential arbitrary code execution after a successful Man-In-The-Middle attack followed by sending a crafted Modbus function call to tamper with memory area involved in memory size computation.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Schneider Electric Modicon M340 CPU (Part Numbers Bmxp34*) — versions Versions prior to SV3.65
- Schneider Electric Modicon Mc80 (Part Numbers Bmkc80) — versions All versions
- Schneider Electric Modicon Momentum Unity M1e Processor (171cbu*) — versions All Versions
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-8938?
- CVE-2024-8938 is a high-severity vulnerability in Schneider Electric Modicon M340 CPU (Part Numbers Bmxp34*), classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2024-11-13.
- How severe is CVE-2024-8938?
- High severity. CVSS v3 base score is 8.1 out of 10.