CVE-2026-7082: A flaw has been found in Tenda F456 1.0.0.5

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HIGH 8.8MITIGATE

CVE-2026-7082 is a high-severity flaw (CVSS 8.8) affecting f456 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in Tenda F456 1.0.0.5. Affected by this vulnerability is the function formWrlExtraSet of the file /goform/WrlExtraSet of the component httpd. Executing a manipulation of the argument Go can lead to buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-119, CWE-120
Published	2026-04-27
Last modified	2026-10-26

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-27 04:16 UTCPublished CVE record published
2026-10-26 00:10 UTCUpdated Record last modified

tenda f456 firmware MITIGATE

Affected: 1.0.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0.5

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · mingw-qt5-qtwebkit · FIXED · 5.212.0-0.46.alpha4.fc46 · FEDORA-2026-46ae541c22 · source

sudo dnf upgrade --advisory=FEDORA-2026-46ae541c22

Fedora ELN · kdominate · FIXED · 26.08.2-2.eln159 · FEDORA-2026-b1d98239fd · source

sudo dnf upgrade --advisory=FEDORA-2026-b1d98239fd

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/Litengzheng/vuldb_new/blob/main/F456/vul_134/README.md

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-2026-7082?

f456 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-7082 being exploited?

CVE-2026-7082 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-2026-7082 affect?

CVE-2026-7082 affects f456 firmware. Severity is high (CVSS 8.8). A flaw has been found in Tenda F456 1.0.0.5. Affected by this vulnerability is the function formWrlExtraSet of the file /goform/WrlExtraSet of the component httpd. Executing a manipulation of the argument Go can lead to buffer overflow. The

How urgent is CVE-2026-7082?

Priority 57/100. High severity; Public exploit reference

Software pages

Apache HTTP Server vulnerabilities

Related CVEs

CVE-2026-7031 HIGH 8.8 MITIGATE A vulnerability was detected in Tenda F456 1.0.0.5
CVE-2026-7033 HIGH 8.8 MITIGATE A vulnerability has been found in Tenda F456 1.0.0.5
CVE-2026-7054 HIGH 8.8 MITIGATE A weakness has been identified in Tenda F456 1.0.0.5
CVE-2026-7029 HIGH 8.8 MITIGATE A weakness has been identified in Tenda F456 1.0.0.5
CVE-2026-7057 HIGH 8.8 MITIGATE A flaw has been found in Tenda F456 1.0.0.5

References

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