NIXPKGS-2026-2593

GitHub issue published 10 hours ago

davenardella snap7 s7_micro_client.cpp opUpload memory corruption

Permalink CVE-2026-90572

2.0 LOW

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): High (H)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): Low (L)
Vulnerable System Impact Integrity (VI): Low (L)
Vulnerable System Impact Availability (VA): Low (L)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Exploit Maturity (E): POC (P)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): High (H)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
Modified Vulnerable System Impact Integrity (MVI): Low (L)
Modified Vulnerable System Impact Availability (MVA): Low (L)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)

updated 10 hours ago by @LeSuisse Activity log

Created suggestion 1 day, 14 hours ago
@LeSuisse ignored
2 packages
- python313Packages.python-snap7
- python314Packages.python-snap7
1 day, 8 hours ago
@LeSuisse accepted 1 day, 8 hours ago
@LeSuisse published on GitHub 10 hours ago

davenardella snap7 s7_micro_client.cpp opUpload memory corruption

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.