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VulnerabilityPublished

CVE-2024-42949: Tenda FH1201 · Stack-based Buffer Overflow

Source CVE Database V5

0

Not known to be exploited · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Aug 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Immediately restrict network access to the Tenda FH1201 router’s management interfaces, especially blocking POST requests to QoS-related endpoints from untrusted or external networks.
  2. Implement network segmentation to isolate the vulnerable router from critical systems and reduce exposure to potential attackers.
  3. Monitor network traffic for anomalous POST requests targeting the qos parameter or unusual router behavior indicative of crashes or reboots.
  4. If possible, disable QoS features temporarily to reduce attack surface until a firmware update is available.
  5. Contact Tenda support or monitor official channels for firmware updates or patches addressing this vulnerability and apply them promptly once released.
  6. Consider replacing the affected router with a device from a vendor with a stronger security track record if patching is delayed.
  7. Employ intrusion detection/prevention systems (IDS/IPS) with custom signatures to detect and block exploit attempts targeting this vulnerability.
  8. Educate network administrators about the vulnerability and ensure incident response plans include procedures for handling router DoS events.

Description

Tenda FH1201 v1.2.0.14 (408) was discovered to contain a stack overflow via the qos parameter in the fromqossetting function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

References

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