CVE-2024-4239: A vulnerability was found in Tenda AX1806 1.0.0.1 and classified as critical

This month

HIGH 8.8MITIGATE

CVE-2024-4239 is a high-severity flaw (CVSS 8.8) affecting ax1806 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Tenda AX1806 1.0.0.1 and classified as critical. Affected by this issue is the function formSetRebootTimer of the file /goform/SetRebootTimer. The manipulation of the argument rebootTime leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-262130 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.5% (top 27%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2024-04-26
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-04-26 21:15 UTCPublished CVE record published
2026-06-17 08:01 UTCUpdated Record last modified

tenda ax1806 firmware MITIGATE

Affected: 1.0.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-4239?

ax1806 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-4239 being exploited?

CVE-2024-4239 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-4239 affect?

CVE-2024-4239 affects ax1806 firmware. Severity is high (CVSS 8.8). A vulnerability was found in Tenda AX1806 1.0.0.1 and classified as critical. Affected by this issue is the function formSetRebootTimer of the file /goform/SetRebootTimer. The manipulation of the argument rebootTime leads to stack-based buf

How urgent is CVE-2024-4239?

Priority 49/100. High severity

Related CVEs

CVE-2025-71021 HIGH 7.5 MITIGATE Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the serverName parameter of the sub_65A28
CVE-2025-71020 HIGH 7.5 MITIGATE Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the security parameter of the sub_4C408 f
CVE-2025-71019 HIGH 7.5 MITIGATE Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the wanSpeed parameter of the sub_65B5C f
CVE-2025-70753 HIGH 7.5 MITIGATE Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the security_5g parameter of the sub_4CA5
CVE-2025-70747 HIGH 7.5 MITIGATE Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the serviceName parameter of the sub_65A2

References

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