How severe is CVE-2026-3271?

CVE-2026-3271 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-2026-3271 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-2026-3271?

CVE-2026-3271 affects Tenda F453 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3271?

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-2026-3271 have an EU (EUVD) identifier?

Yes. CVE-2026-3271 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8968.

When was CVE-2026-3271 published?

CVE-2026-3271 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2026-3271

CVE-2026-3271 is a high-severity vulnerability in Tenda F453 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-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8968
Weakness: CWE-120
Affected product: Tenda F453 Firmware
Published: 2026-02-27
Last modified: 2026-06-17

Description

A vulnerability was found in Tenda F453 1.0.0.3. This impacts the function fromP2pListFilter of the file /goform/P2pListFilterof of the component httpd. The manipulation of the argument page results in buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

Frequently asked questions

What is CVE-2026-3271?: A vulnerability was found in Tenda F453 1.0.0.3. This impacts the function fromP2pListFilter of the file /goform/P2pListFilterof of the component httpd. The manipulation of the argument page results in buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.
How severe is CVE-2026-3271?: CVE-2026-3271 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-2026-3271 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-2026-3271?: CVE-2026-3271 affects Tenda F453 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3271?: 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-2026-3271 have an EU (EUVD) identifier?: Yes. CVE-2026-3271 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8968.
When was CVE-2026-3271 published?: CVE-2026-3271 was published on 2026-02-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:f453_firmware:1.0.0.3:*:*:*:*:*:*:*

More vulnerabilities in Tenda F453 Firmware

CVE-2026-5021 — High (CVSS 8.8): A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromPPTPUserSetting of the file…
CVE-2026-4553 — High (CVSS 8.8): A vulnerability was identified in Tenda F453 1.0.0.3. Impacted is the function fromNatlimit of the file…
CVE-2026-4552 — High (CVSS 8.8): A vulnerability was determined in Tenda F453 1.0.0.3. This issue affects the function fromVirtualSer of the file…
CVE-2026-4551 — High (CVSS 8.8): A vulnerability was found in Tenda F453 1.0.0.3. This vulnerability affects the function fromSafeClientFilter of the…
CVE-2026-3769 — High (CVSS 8.8): A vulnerability was detected in Tenda F453 1.0.0.3. Affected by this issue is the function WrlclientSet of the file…
CVE-2026-3768 — High (CVSS 8.8): A security vulnerability has been detected in Tenda F453 1.0.0.3. Affected by this vulnerability is the function…

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