CVE-2026-8263

Ac10u Firmware vulnerability

CVSS

4.7

EPSS

4.6%

EPSS pct

91th

Exploited

No known

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.

Affected vendor

Tenda

Affected product

Ac10u Firmware

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Weakness type (CWE)

CWE-77 — Command Injection
CWE-78 — OS Command Injection
CWE-787 — Out-of-bounds Write

Published

2026-05-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 4.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2026-8263

Confirm whether Tenda Ac10u Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2026-8263.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2026-8263

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2026-8263 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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