CVE-2025-10685Network attack vectorHinoki check available

Unauthenticated service interruption via oversized HTTP POST

Published Mar 16, 2026 · Updated Mar 16, 2026

Heap-based buffer overflow in smartLink SW-PN through 1.03 and smartLink SW-HT through 1.42 allows remote attackers to interrupt service. The Webserver module mishandles an HTTP POST with a specifically high Content-Length value, causing heap corruption. No authentication or user interaction is required; successful exploitation interrupts the webserver and downstream service until automatic recovery.

CVSS severityUnavailable
Unscored
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Heap-based buffer overflow in smartLink SW-PN through 1.03 and smartLink SW-HT through 1.42 allows remote attackers to interrupt service. The Webserver module mishandles an HTTP POST with a specifically high Content-Length value, causing heap corruption. No authentication or user interaction is required; successful exploitation interrupts the webserver and downstream service until automatic recovery.

The record

CVE
CVE-2025-10685
Published
Mar 16, 2026
Updated
Mar 16, 2026
Vendor
Softing Industrial Automation GmbH
Product
smartLink SW-PN
Classifications
CWE-122, CAPEC-100, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Softing Industrial Automation GmbH · smartLink SW-PNversion=0 <=1.03
Softing Industrial Automation GmbH · smartLink SW-HTversion=0 <=1.42

Published CVSS scores

7.7SoftingCVSS: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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
CAPEC-100Overflow Buffers
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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