How severe is CVE-2024-0540?

CVE-2024-0540 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-0540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-0540?

CVE-2024-0540 affects Tenda W9 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-0540?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-0540 have an EU (EUVD) identifier?

Yes. CVE-2024-0540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-16333.

When was CVE-2024-0540 published?

CVE-2024-0540 was published on 2024-01-15 and last updated on 2026-06-17.

CVE-2024-0540

CVE-2024-0540 is a medium-severity vulnerability in Tenda W9 Firmware with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-16333
Weakness: CWE-787
Affected product: Tenda W9 Firmware
Published: 2024-01-15
Last modified: 2026-06-17

Description

A vulnerability was found in Tenda W9 1.0.0.7(4456). It has been classified as critical. Affected is the function formOfflineSet of the component httpd. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-250710 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2024-0540?: A vulnerability was found in Tenda W9 1.0.0.7(4456). It has been classified as critical. Affected is the function formOfflineSet of the component httpd. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-250710 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2024-0540?: CVE-2024-0540 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-0540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-0540?: CVE-2024-0540 affects Tenda W9 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-0540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-0540 have an EU (EUVD) identifier?: Yes. CVE-2024-0540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-16333.
When was CVE-2024-0540 published?: CVE-2024-0540 was published on 2024-01-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:w9_firmware:1.0.0.7\(4456\):*:*:*:*:*:*:*

More vulnerabilities in Tenda W9 Firmware

CVE-2023-51102 — Critical (CVSS 9.8): Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a stack overflow via the function formWifiMacFilterSet.
CVE-2023-51101 — Critical (CVSS 9.8): Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a stack overflow via the function formSetUplinkInfo.
CVE-2023-51100 — Critical (CVSS 9.8): Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a command injection vulnerability via the function…
CVE-2023-51099 — Critical (CVSS 9.8): Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a command injection vulnerability via the function formexeCommand .
CVE-2023-51098 — Critical (CVSS 9.8): Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a command injection vulnerability via the function…
CVE-2023-51097 — Critical (CVSS 9.8): Tenda W9 V1.0.0.7(4456)_CN was discovered to contain a stack overflow via the function formSetAutoPing.

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