CVE-2025-3802
CVE-2025-3802 is a high-severity vulnerability in Tenda W12 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-119.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 9.0
- CVSS v4: 8.7
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-11936
- Weakness: CWE-119
- Affected product: Tenda W12 Firmware
- Published:
- Last modified:
Description
A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). It has been declared as critical. This vulnerability affects the function cgiPingSet of the file /bin/httpd. The manipulation of the argument pingIP leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Frequently asked questions
- What is CVE-2025-3802?
- A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). It has been declared as critical. This vulnerability affects the function cgiPingSet of the file /bin/httpd. The manipulation of the argument pingIP leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
- How severe is CVE-2025-3802?
- CVE-2025-3802 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-2025-3802 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-3802?
- CVE-2025-3802 primarily affects Tenda W12 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-3802?
- 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-2025-3802 have an EU (EUVD) identifier?
- Yes. CVE-2025-3802 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11936.
- When was CVE-2025-3802 published?
- CVE-2025-3802 was published on 2025-04-19 and last updated on 2026-06-17.
References
- https://github.com/02Tn/vul/issues/2
- https://vuldb.com/?ctiid.305656
- https://vuldb.com/?id.305656
- https://vuldb.com/?submit.554746
- https://www.tenda.com.cn/
Affected products (4)
- cpe:2.3:o:tenda:w12_firmware:3.0.0.4\(2887\):*:*:*:*:*:*:*
- cpe:2.3:o:tenda:w12_firmware:3.0.0.5\(3644\):*:*:*:*:*:*:*
- cpe:2.3:o:tenda:i24_firmware:3.0.0.4\(2887\):*:*:*:*:*:*:*
- cpe:2.3:o:tenda:i24_firmware:3.0.0.5\(3644\):*:*:*:*:*:*:*
More vulnerabilities in Tenda W12 Firmware
- CVE-2025-11549 — High (CVSS 8.8): A vulnerability has been found in Tenda W12 3.0.0.6(3948). The affected element is the function wifiMacFilterSet of the…
- CVE-2025-4007 — High (CVSS 8.8): A vulnerability classified as critical was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). Affected by this…
- CVE-2025-3820 — High (CVSS 8.8): A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this…
- CVE-2025-3803 — High (CVSS 8.8): A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). It has been rated as critical. This issue…
- CVE-2025-3693 — High (CVSS 8.8): A vulnerability was found in Tenda W12 3.0.0.5. It has been rated as critical. Affected by this issue is the function…
- CVE-2025-11550 — Medium (CVSS 6.5): A vulnerability was found in Tenda W12 3.0.0.6(3948). The impacted element is the function wifiScheduledSet of the file…
All CVEs affecting Tenda W12 Firmware →
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