CVE-2026-3803Disclosure(tenda / i3)

LOWCVSS 7.4 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability was identified in Tenda i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. The manipulation of the argument index leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

0.0/ 10 priority

Sources & remediation

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.

  • i3
  • i3_firmware

Threat summary

  • 7 mentions across 4 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 5 signals
  • Disclosure: 6 classified signals
  • General: 1 classified signal
  • Peaked 3d ago at 3 mentions (2026-03-09); latest day: 1
  • 7 total mentions across 4 days

Affected systems

Vendors
Products
i3i3_firmware

2 versions affected across 2 products

Deep dive

Activity timeline7 mentions / 4d
01223Mentions · 2026-03-09: 3Mentions · 2026-03-10: 2Mentions · 2026-03-12: 1Mentions · 2026-03-13: 1Technical Details · 2026-03-09: 2Technical Details · 2026-03-10: 1Technical Details · 2026-03-12: 1Technical Details · 2026-03-13: 103-0903-1003-1203-13
Signal classification2 categories
Disclosure
685.7%
General
114.3%
Referenced assets6 URLs
Classification over time
DateTotalLabels
2026-03-093
Disclosure2General1
2026-03-102
Disclosure2
2026-03-121
Disclosure1
2026-03-131
Disclosure1
Full discourse7 posts
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-3803 (CVSS:7.4, HIGH) is Analyzed. A vulnerability was identified in Tenda i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /go..https://nvd.nist.gov/vuln/detail/CVE-2026-3803 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    CVE-2026-3803 is a high‑scoring vulnerability in Tenda i3 devices that impacts the formWifiMacFilterGet function, as highlighted by the NVD entry.

    0000029
    172 followersView on X
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-3803 (CVSS:7.4, HIGH) is Analyzed. A vulnerability was identified in Tenda i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /go..https://nvd.nist.gov/vuln/detail/CVE-2026-3803 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The tweet announces CVE-2026-3803, including its CVSS score and affected function, and links to the NVD entry, but offers no PoC, exploit, or patch information.

    0000032
    172 followersView on X
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-3803 📊 Severity: 8.8 🚨 Risk Level: High 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-3803 #CVE-2026-3803 #CVE #High  #CyberSecurity #InfoSec https://t.co/Lm3atMWaPA

    Post summary

    The tweet announces CVE-2026-3803, stating a high severity score of 8.8 and providing a reference to the NVD entry.

    0000020
    91 followersView on X
  • RedPacket Security@RedPacketSec
    Disclosure

    CVE Alert: CVE-2026-3803 - Tenda - i3 - https://www.redpacketsecurity.com/cve-alert-cve-2026-3803-tenda-i3/ #OSINT #ThreatIntel #CyberSecurity #cve-2026-3803 #tenda #i3

    Post summary

    The tweet announces a CVE Alert for CVE-2026-3803 on a Tenda i3 device and links to a Red Packet Security page, but it provides no further details on vulnerability specifics, exploit availability, or remediation.

    0000062
    3.5K followersView on X
  • CVE@CVEnew
    General

    CVE-2026-3803 A vulnerability was identified in Tenda i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. The manipulation of the a… https://www.cve.org/CVERecord?id=CVE-2026-3803

    Post summary

    The post announces CVE‑2026‑3803 in the Tenda i3 firmware, noting an affected function, but offers no further detail on exploitation, patches, or technical specifics.

    00000129
    56.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-3803 Tenda i3 Router Remote Stack Overflow Vulnerability in WifiMacFilterGet https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3803 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3

    Post summary

    The post announces the existence of CVE‑2026‑3803, a stack‑overflow vulnerability in the Tenda i3 Router’s WifiMacFilterGet function, and provides generic links to further details, but offers no PoC, exploit, or patch information.

    0000066
    4.0K followersView on X
  • CVEFind.com@CveFindCom
    Disclosure

    [CVE-2026-3803: HIGH] Critical vulnerability detected in Tenda i3 1.0.0.6(2204) allows remote attackers to trigger a stack-based buffer overflow via formWifiMacFilterGet function. Public exploit available.#cve,CVE-2026-3803,#cybersecurity https://cvefind.com/CVE-2026-3803

    Post summary

    A critical stack‑based buffer overflow exists in Tenda i3 firmware, and a public exploit is reportedly available, but there is no evidence of active attacks or vendor patches. The primary focus is the disclosure of the vulnerability.

    0000068
    600 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWtendai3---
OStendai3_firmware1.0.0.6\(2204\)--

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