How severe is CVE-2024-3877?

CVE-2024-3877 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-2024-3877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-3877?

CVE-2024-3877 affects Tenda F1202 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-3877?

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-2024-3877 have an EU (EUVD) identifier?

Yes. CVE-2024-3877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32445.

When was CVE-2024-3877 published?

CVE-2024-3877 was published on 2024-04-16 and last updated on 2026-06-17.

CVE-2024-3877

CVE-2024-3877 is a high-severity vulnerability in Tenda F1202 Firmware 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
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-32445
Weakness: CWE-787
Affected product: Tenda F1202 Firmware
Published: 2024-04-16
Last modified: 2026-06-17

Description

A vulnerability classified as critical was found in Tenda F1202 1.2.0.20(408). Affected by this vulnerability is the function fromqossetting of the file /goform/fromqossetting. The manipulation of the argument qos leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-260911. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2024-3877?: A vulnerability classified as critical was found in Tenda F1202 1.2.0.20(408). Affected by this vulnerability is the function fromqossetting of the file /goform/fromqossetting. The manipulation of the argument qos leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-260911. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2024-3877?: CVE-2024-3877 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-2024-3877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-3877?: CVE-2024-3877 affects Tenda F1202 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-3877?: 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-2024-3877 have an EU (EUVD) identifier?: Yes. CVE-2024-3877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32445.
When was CVE-2024-3877 published?: CVE-2024-3877 was published on 2024-04-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:f1202_firmware:1.2.0.20\(408\):*:*:*:*:*:*:*

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