CVE-2026-7031: A vulnerability was detected in Tenda F456 1.0.0.5

This month

HIGH 8.8MITIGATE

CVE-2026-7031 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 vulnerability was detected in Tenda F456 1.0.0.5. This impacts the function fromSafeMacFilter of the file /goform/SafeMacFilter. The manipulation of the argument page results in buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-119, CWE-120
Published	2026-04-26
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

2026-04-26 10:16 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.

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-2026-7031?

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

Is CVE-2026-7031 being exploited?

CVE-2026-7031 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-2026-7031 affect?

CVE-2026-7031 affects f456 firmware. Severity is high (CVSS 8.8). A vulnerability was detected in Tenda F456 1.0.0.5. This impacts the function fromSafeMacFilter of the file /goform/SafeMacFilter. The manipulation of the argument page results in buffer overflow. It is possible to launch the attack remotel

How urgent is CVE-2026-7031?

Priority 49/100. High severity; Public exploit reference

Related CVEs

CVE-2026-7082 HIGH 8.8 MITIGATE A flaw has been found 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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