CVE-2026-8263: A security flaw has been discovered in Tenda AC6 15.03.06.49_multi_TDE01

This month

MEDIUM 4.7MITIGATE

CVE-2026-8263 is a medium-severity flaw (CVSS 4.7) affecting ac10u firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

EPSS top 8%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Weakness	CWE-77, CWE-78, CWE-787
Published	2026-05-11
Last modified	2026-07-23

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-07-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-11 02:16 UTCPublished CVE record published
2026-07-23 20:10 UTCUpdated Record last modified

tenda ac10u firmware MITIGATE

Affected: 15.03.06.49_multi_tde01

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.03.06.49_multi_tde01

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-8263?

ac10u firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-8263 being exploited?

CVE-2026-8263 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-8263 affect?

CVE-2026-8263 affects ac10u firmware. Severity is medium (CVSS 4.7). 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

How urgent is CVE-2026-8263?

Priority 44/100. EPSS top 8%: very likely to be exploited; Public exploit reference

Software pages

Apache HTTP Server vulnerabilities

References

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