VulnSocial

CVE-2026-5349Disclosure(trendnet / tew-657brm)

LOWCVSS 7.4 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

A vulnerability was identified in Trendnet TEW-657BRM 1.00.1. The affected element is the function add_apcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used. 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.

trendnet CVEsBack to dashboard
1.5/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-119CWE-121

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • tew-657brm
  • tew-657brm_firmware

Threat summary

  • Public PoC is present in monitored signal
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • Exploit: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-04-02); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
trendnet
Products
tew-657brmtew-657brm_firmware

2 versions affected across 2 products

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-02: 2Mentions · 2026-04-03: 1PoC Mentioned / Linked · 2026-04-02: 1Technical Details · 2026-04-02: 2Technical Details · 2026-04-03: 104-0204-03
Signal classification2 categories
Disclosure
266.7%
Exploit
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-022
Disclosure1Exploit1
2026-04-031
Disclosure1
Full discourse3 posts
  • The Hacker Wire@TheHackerWire
    Disclosure

    🟠 CVE-2026-5349 - High A vulnerability was identified in Trendnet TEW-657BRM 1.00.1. The affected element is the function add_apcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba leads to stack-... https://www.thehackerwire.com/vulnerability/CVE-2026-5349/ https://t.co/yqVBwLTnIi

    Post summary

    A disclosure of CVE‑2026‑5349 for Trendnet TEW‑657BRM is provided, detailing the vulnerable function and parameters, but no PoC, exploit, active usage, patch, or false‑positive claim is evident.

    0000050
    163 followersView on X
  • CVEFind.com@CveFindCom
    Exploit

    [CVE-2026-5349: HIGH] Vulnerability in Trendnet TEW-657BRM 1.00.1 discovered allowing remote stack-based buffer overflow attack, exploit available. Vendor confirms no support for discontinued product.#cve,CVE-2026-5349,#cybersecurity https://cvefind.com/CVE-2026-5349

    Post summary

    CVE-2026-5349 is a remote stack‑based buffer overflow in the Trendnet TEW‑657BRM 1.00.1, with an exploit reported as available, though no patch or active exploitation has been documented.

    0000034
    617 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-5349 A vulnerability was identified in Trendnet TEW-657BRM 1.00.1. The affected element is the function add_apcdb of the file /setup.cgi. The manipulation of the argument ma… https://www.cve.org/CVERecord?id=CVE-2026-5349

    Post summary

    CVE-2026-5349 affects Trendnet TEW-657BRM 1.00.1 by manipulating the add_apcdb function in /setup.cgi; the description provides technical details but no PoC, exploit code, patch info, or evidence of active exploitation.

    0000054
    56.9K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWtrendnettew-657brm---
OStrendnettew-657brm_firmware1.00.1--

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