CVE-2026-90572
davenardella snap7 s7_micro_client.cpp opUpload memory corruption
LOW 2.0EPSS 0.4%
A vulnerability was determined in davenardella snap7 up to 1.4.3. The affected element is the function TSnap7MicroClient::opUpload of the file src/core/s7_micro_client.cpp. Executing a manipulation of the argument DataLen can lead to memory corruption. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
- Affected
- davenardella · snap7
- CVSS v4.0 VULDB
- 2.0 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 - CVSS v3.1 VULDB
- 4.7 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L - CVSS v2.0 VULDB
- 5.8 MEDIUM
AV:N/AC:L/Au:M/C:P/I:P/A:P - EPSS
- 0.42% chance of exploitation in the next 30 days, 35th percentile
- Published
- 2026-09-13
- Updated
- 2026-09-15
Proof-of-concept exploits (1)
- davenardella/snap7/issues/30175★ · 2025-07-14