CVE-2025-60684Public exploitNetwork attack vector

Unauthenticated memory corruption via unbounded Help URL

Published Nov 13, 2025 · Updated Jul 5, 2026

Stack buffer overflow in TOTOLINK LR1200GB and NR1800X router firmware allows remote attackers to corrupt memory via the web interface. The cstecgi.cgi sub_42F32C function passes the unbounded lang value and a derived Help URL to sprintf() calls that write into a 128-byte stack buffer. The request requires network access to the web interface but no authentication or user interaction; the published proof of concept demonstrates the overwrite path but not a complete code-execution chain.

CVSS severity6.5
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack buffer overflow in TOTOLINK LR1200GB and NR1800X router firmware allows remote attackers to corrupt memory via the web interface. The cstecgi.cgi sub_42F32C function passes the unbounded lang value and a derived Help URL to sprintf() calls that write into a 128-byte stack buffer. The request requires network access to the web interface but no authentication or user interaction; the published proof of concept demonstrates the overwrite path but not a complete code-execution chain.

The record

CVE
CVE-2025-60684
Published
Nov 13, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

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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