How severe is CVE-2024-6963?

CVE-2024-6963 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-6963 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-6963?

CVE-2024-6963 affects Tenda O3 Firmware1.0.0.10(2478). See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-6963?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-6963 have an EU (EUVD) identifier?

Yes. CVE-2024-6963 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-47947.

When was CVE-2024-6963 published?

CVE-2024-6963 was published on 2024-07-22 and last updated on 2026-06-17.

CVE-2024-6963

CVE-2024-6963 is a high-severity vulnerability in Tenda O3 Firmware1.0.0.10(2478) with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 8.7
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-47947
Weakness: CWE-787
Affected product: Tenda O3 Firmware1.0.0.10(2478)
Published: 2024-07-22
Last modified: 2026-06-17

Description

A vulnerability, which was classified as critical, has been found in Tenda O3 1.0.0.10. This issue affects the function formexeCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-272117 was 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-2024-6963?: A vulnerability, which was classified as critical, has been found in Tenda O3 1.0.0.10. This issue affects the function formexeCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-272117 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2024-6963?: CVE-2024-6963 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-6963 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-6963?: CVE-2024-6963 affects Tenda O3 Firmware1.0.0.10(2478). See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-6963?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-6963 have an EU (EUVD) identifier?: Yes. CVE-2024-6963 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-47947.
When was CVE-2024-6963 published?: CVE-2024-6963 was published on 2024-07-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:o3_firmware1.0.0.10\(2478\):*:*:*:*:*:*:*:*

More vulnerabilities in Tenda O3 Firmware1.0.0.10(2478)

CVE-2025-12214 — High (CVSS 8.8): A vulnerability was detected in Tenda O3 1.0.0.10(2478). This issue affects the function SetValue/GetValue of the file…
CVE-2025-12213 — High (CVSS 8.8): A security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This vulnerability affects the function…
CVE-2025-12212 — High (CVSS 8.8): A weakness has been identified in Tenda O3 1.0.0.10(2478). This affects the function SetValue/GetValue of the file…
CVE-2025-12211 — High (CVSS 8.8): A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function…
CVE-2025-12210 — High (CVSS 8.8): A vulnerability was identified in Tenda O3 1.0.0.10(2478). Affected by this vulnerability is the function…
CVE-2025-12209 — High (CVSS 8.8): A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file…

All CVEs affecting Tenda O3 Firmware1.0.0.10(2478) →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →