How severe is CVE-2026-3808?

CVE-2026-3808 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-2026-3808 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3808?

CVE-2026-3808 affects Tenda Fh1202 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3808?

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-2026-3808 have an EU (EUVD) identifier?

Yes. CVE-2026-3808 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10302.

When was CVE-2026-3808 published?

CVE-2026-3808 was published on 2026-03-09 and last updated on 2026-06-17.

CVE-2026-3808

CVE-2026-3808 is a high-severity vulnerability in Tenda Fh1202 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: 7.4
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10302
Weakness: CWE-119
Affected product: Tenda Fh1202 Firmware
Published: 2026-03-09
Last modified: 2026-06-17

Description

A vulnerability was detected in Tenda FH1202 1.2.0.14(408). The affected element is the function formWebTypeLibrary of the file /goform/webtypelibrary. Performing a manipulation of the argument webSiteId results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

Frequently asked questions

What is CVE-2026-3808?: A vulnerability was detected in Tenda FH1202 1.2.0.14(408). The affected element is the function formWebTypeLibrary of the file /goform/webtypelibrary. Performing a manipulation of the argument webSiteId results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
How severe is CVE-2026-3808?: CVE-2026-3808 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-2026-3808 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3808?: CVE-2026-3808 affects Tenda Fh1202 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3808?: 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-2026-3808 have an EU (EUVD) identifier?: Yes. CVE-2026-3808 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10302.
When was CVE-2026-3808 published?: CVE-2026-3808 was published on 2026-03-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:fh1202_firmware:1.2.0.14\(408\):*:*:*:*:*:*:*

More vulnerabilities in Tenda Fh1202 Firmware

CVE-2024-30589 — Critical (CVSS 9.8): Tenda FH1202 v1.2.0.14(408) firmware has a stack overflow vulnerability in the entrys parameter of the fromAddressNat…
CVE-2024-30587 — Critical (CVSS 9.8): Tenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the urls parameter of the saveParentControlInfo…
CVE-2024-30584 — Critical (CVSS 9.8): Tenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the security parameter of the formWifiBasicSet…
CVE-2024-30596 — Critical (CVSS 9.8): Tenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the deviceId parameter of the formSetDeviceName…
CVE-2024-30593 — Critical (CVSS 9.8): Tenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability located in the deviceName parameter of the…
CVE-2024-30595 — Critical (CVSS 9.8): Tenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the deviceId parameter of the addWifiMacFilter…

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