A vulnerability was determined in davenardella snap7 up to 1.4.3. (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.
AI Analysis
Technical Summary
The vulnerability exists in the function TSnap7MicroClient::opUpload within the file src/core/s7_micro_client.cpp of davenardella snap7 versions up to 1.4.3. Manipulating the DataLen argument can lead to memory corruption. The attack vector is network-based and requires high privileges. The vulnerability is tracked as CVE-2026-90572 and has been publicly disclosed. The project was notified early but has not issued a fix or response. The CVSS 3.1 base score is 4.7, reflecting low severity with impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to memory corruption, potentially affecting confidentiality, integrity, and availability of the affected system. The attack requires high privileges and can be executed remotely. There is no evidence of active exploitation in the wild at this time.
Mitigation Recommendations
No official fix or patch is currently available, and the vendor has not responded to the issue report. Users should monitor the vendor's channels for updates. Until a patch is released, restricting access to the vulnerable function and limiting privileges may reduce risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
A vulnerability was determined in davenardella snap7 up to 1.4.3. (CVE-2026-90572)
Description
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 v3.1
Score 4.7medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability exists in the function TSnap7MicroClient::opUpload within the file src/core/s7_micro_client.cpp of davenardella snap7 versions up to 1.4.3. Manipulating the DataLen argument can lead to memory corruption. The attack vector is network-based and requires high privileges. The vulnerability is tracked as CVE-2026-90572 and has been publicly disclosed. The project was notified early but has not issued a fix or response. The CVSS 3.1 base score is 4.7, reflecting low severity with impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to memory corruption, potentially affecting confidentiality, integrity, and availability of the affected system. The attack requires high privileges and can be executed remotely. There is no evidence of active exploitation in the wild at this time.
Mitigation Recommendations
No official fix or patch is currently available, and the vendor has not responded to the issue report. Users should monitor the vendor's channels for updates. Until a patch is released, restricting access to the vulnerable function and limiting privileges may reduce risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-xrq6-q643-mcv3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-90572"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa7419a55bf5e2cf5489b90
Added to database: 09/14/2026, 00:36:42 UTC
Last enriched: 09/14/2026, 00:39:31 UTC
Last updated: 09/14/2026, 02:01:22 UTC
Views: 2
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