CVE-2026-5350 (GCVE-0-2026-5350)

Vulnerability from cvelistv5 – Published: 2026-04-02 15:30 – Updated: 2026-04-02 16:20 Unsupported When Assigned
VLAI
Title
Trendnet TEW-657BRM setup.cgi update_pcdb stack-based overflow
Summary
A security flaw has been discovered in Trendnet TEW-657BRM 1.00.1. The impacted element is the function update_pcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago. We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us." This vulnerability only affects products that are no longer supported by the maintainer.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/354703 vdb-entrytechnical-description
https://vuldb.com/vuln/354703/cti signaturepermissions-required
https://vuldb.com/submit/781567 third-party-advisory
https://github.com/panda666-888/vuls/blob/main/tr… exploitpatch
Impacted products
Vendor Product Version
Trendnet TEW-657BRM Affected: 1.00.1
    cpe:2.3:o:trendnet:tew-657brm_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
panda_0x1 (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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    "redhat_vex": {
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      "cve": "CVE-2026-5350",
      "id": "CVE-2026-5350",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Trendnet TEW-657BRM setup.cgi update_pcdb stack-based overflow",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5350.json",
      "version": "3"
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}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.