How severe is CVE-2026-8263?

CVE-2026-8263 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-8263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8263?

CVE-2026-8263 affects Tenda Ac10u Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-8263 have an EU (EUVD) identifier?

Yes. CVE-2026-8263 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29019.

When was CVE-2026-8263 published?

CVE-2026-8263 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-8263

CVE-2026-8263 is a medium-severity vulnerability in Tenda Ac10u Firmware with a CVSS 3.x base score of 4.7. 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: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 5% (90th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29019
Weakness: CWE-787
Affected product: Tenda Ac10u Firmware
Published: 2026-05-11
Last modified: 2026-06-17

Description

A security flaw has been discovered in Tenda AC6 15.03.06.49_multi_TDE01. Affected is the function fromSetWirelessRepeat of the file /goform/WifiExtraSet of the component httpd. Performing a manipulation of the argument mac/ssid results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

Frequently asked questions

What is CVE-2026-8263?: A security flaw has been discovered in Tenda AC6 15.03.06.49_multi_TDE01. Affected is the function fromSetWirelessRepeat of the file /goform/WifiExtraSet of the component httpd. Performing a manipulation of the argument mac/ssid results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.
How severe is CVE-2026-8263?: CVE-2026-8263 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-8263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8263?: CVE-2026-8263 affects Tenda Ac10u Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8263 have an EU (EUVD) identifier?: Yes. CVE-2026-8263 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29019.
When was CVE-2026-8263 published?: CVE-2026-8263 was published on 2026-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ac10u_firmware:15.03.06.49_multi_tde01:*:*:*:*:*:*:*

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