CVE-2024-8937: schneider electric modicon m340 cpu (part numbers bmxp34*)
Vulnerability summary
CVE-2024-8937 is a high (CVSS 8.3) vulnerability in schneider electric modicon m340 cpu (part numbers bmxp34*). EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 46.9% of scored vulnerabilities.
Timeline
- 13-11-2024PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
Description
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 the authentication process.
CVSS metrics
4 scores · 2 sources · 2 versions- NVDNIST8.3HighCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS trend
Probability
0.59%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
0.00 pp
From 0.59% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Schneider electric3 products
- modicon m340 cpu (part numbers bmxp34*)Versions prior to SV3.65
- modicon mc80 (part numbers bmkc80)All versions (No fix recorded)
- modicon momentum unity m1e processor (171cbu*)All versions (No fix recorded)
1 vendor · 3 products