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No exploitation reported

CVE-2026-129351

TRENDnet TEW-657BRM mini_httpd setup.cgi sprintf out-of-bounds write

No exploitation reported by the sources we read.

  • Published2026-11-14
  • WeaknessCWE-119 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A security vulnerability has been detected in TRENDnet TEW-657BRM 1.00.1. This vulnerability affects the function sprintf of the file /setup.cgi of the component mini_httpd. Such manipulation leads to out-of-bounds write. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor explains: ""I am not able to confirm if such vulnerability exists as the product has been EOL for more than 15 years. We will send out an announcement letting customers know." This vulnerability only affects products that are no longer supported by the maintainer.

Timeline

dates in UTC
  1. 2026-11-1422:30CVE publishedCNA

Versions per branch

Products declared by the CNA

As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • TRENDnet TEW-657BRM
    Affected
    • = 1.00.1no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-14

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-129351 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 4.0102026-11-14
  • CNACVSS 3.1102026-11-14
  • NVDCVSS 3.110read 2026-11-14
  • CNACVSS 3.0102026-11-14
  • CNACVSS 2.0102026-11-14
  • CNAweakness (CWE)CWE-119, CWE-7872026-11-14
  • NVDweakness (CWE)CWE-119, CWE-787read 2026-11-14

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-11-14
Last Modified
2026-11-14
NVD status
Deferred

Frequently asked questions

What is CVE-2026-129351?

A security vulnerability has been detected in TRENDnet TEW-657BRM 1.00.1. This vulnerability affects the function sprintf of the file /setup.cgi of the component mini_httpd. Such manipulation leads to out-of-bounds write. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor explains: ""I am not able to confirm if such vulnerability exists as the product has been EOL for more than 15 years. We will send out an announcement letting customers know." This vulnerability only affects products that are no longer supported by the maintainer.

Is CVE-2026-129351 actively exploited?

Active exploitation of CVE-2026-129351 has not been confirmed.

What is the CVSS score for CVE-2026-129351?

CVE-2026-129351 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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