CVE-2025-10685 PUBLISHED

HTTP POST with specific higher content length leads into heap corruption

Assigner: Softing
Reserved: 18.09.2025 Published: 16.03.2026 Updated: 16.03.2026

Heap-based buffer overflow vulnerability in Softing Industrial Automation GmbH smartLink SW-PN and smartLink SW-HT (Webserver modules) allows overflow buffers.This issue affects:

smartLink SW-PN: through 1.03

smartLink SW-HT: through 1.42

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/AU:Y/R:A/RE:L/U:Red
CVSS Score: 7.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Softing
Product	smartLink SW-PN
Versions	Default: unaffected affected from 0 to 1.03 (incl.) Version 1.04 is unaffected

Vendor	Softing
Product	smartLink SW-HT
Versions	Default: unaffected affected from 0 to 1.42 (incl.) Version 1.43 is unaffected

Solutions

Update firmware for

smartLink SW-PN: to 1.04

smartLink SW-HT: to 1.43

Credits

Frank Renner finder

References

Problem Types

CWE-122 Heap-based Buffer Overflow CWE

Impacts

CAPEC-100 Overflow Buffers