CVE-2026-90572

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.

CVSS v3 4.7 MEDIUM
CVSS v2.0 5.8 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:M/C:P/I:P/A:P

Exploitability : 6.4 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication MULTIPLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/davenardella/snap7/
https://github.com/davenardella/snap7/issues/30
https://vuldb.com/cve/CVE-2026-90572
https://vuldb.com/submit/912711
https://vuldb.com/vuln/403157
https://vuldb.com/vuln/403157/cti

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-13 18:16

Updated : 2026-09-15 15:17

NVD link : CVE-2026-90572

Mitre link : CVE-2026-90572

CVE.ORG link : CVE-2026-90572

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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