CVE-2026-5155PoC(tenda / ch22)

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 found in Tenda CH22 1.0.0.1. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component Parameter Handler. The manipulation of the argument wanmode results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.

1.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-119CWE-121CWE-787

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.

  • ch22
  • ch22_firmware

Threat summary

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

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-03-30); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
ch22ch22_firmware

2 versions affected across 2 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-03-30: 1Mentions · 2026-03-31: 1PoC Mentioned / Linked · 2026-03-30: 1Technical Details · 2026-03-30: 1Technical Details · 2026-03-31: 103-3003-31
Signal classification2 categories
PoC
150.0%
Disclosure
150.0%
Referenced assets2 URLs
By indicator
Classification over time
DateTotalLabels
2026-03-301
PoC1
2026-03-311
Disclosure1
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-5155 A vulnerability was found in Tenda CH22 1.0.0.1. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component Parameter Handler. The manipulat… https://www.cve.org/CVERecord?id=CVE-2026-5155

    Post summary

    A vulnerability (CVE-2026-5155) was discovered in a Tenda router firmware, affecting the Parameter Handler’s function fromAdvSetWan. The record includes technical details but no Proof of Concept, exploit code, active exploitation, or patch information.

    00000100
    56.9K followersView on X
  • CVEFind.com@CveFindCom
    PoC

    [CVE-2026-5155: HIGH] Critical vulnerability in Tenda CH22 1.0.0.1 allows remote stack-based buffer overflow attacks via manipulation of the argument wanmode. Public exploit available.#cve,CVE-2026-5155,#cybersecurity https://cvefind.com/CVE-2026-5155

    Post summary

    A critical stack‑based buffer overflow in Tenda CH22 is disclosed, with a public exploit referenced; no patch or active exploitation reports are provided, and technical details of the vulnerability are included.

    0000058
    608 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWtendach22---
OStendach22_firmware1.0.0.1--

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