CVE-2025-6113: A vulnerability, which was classified as critical, was found in Tenda FH1203 2.0.1.6

This month

HIGH 8.8MITIGATE

CVE-2025-6113 is a high-severity flaw (CVSS 8.8) affecting fh1203 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, was found in Tenda FH1203 2.0.1.6. Affected is the function fromadvsetlanip of the file /goform/AdvSetLanip. The manipulation of the argument lanMask leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the 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	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-119, CWE-120
Published	2025-06-16
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-16 08:15 UTCPublished CVE record published
2026-06-17 10:01 UTCUpdated Record last modified

tenda fh1203 firmware MITIGATE

Affected: 2.0.1.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.1.6

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-2025-6113?

fh1203 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-6113 being exploited?

CVE-2025-6113 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-2025-6113 affect?

CVE-2025-6113 affects fh1203 firmware. Severity is high (CVSS 8.8). A vulnerability, which was classified as critical, was found in Tenda FH1203 2.0.1.6. Affected is the function fromadvsetlanip of the file /goform/AdvSetLanip. The manipulation of the argument lanMask leads to buffer overflow. It is possibl

How urgent is CVE-2025-6113?

Priority 54/100. High severity; Public exploit reference

Related CVEs

CVE-2025-69700 HIGH 7.5 MITIGATE Tenda FH1203 V2.0.1.6 contains a stack-based buffer overflow vulnerability in the modify_add_client_prio funct
CVE-2024-32311 MEDIUM 6.5 MITIGATE Tenda FH1203 v2.0.1.6 firmware has a stack overflow vulnerability via the adslPwd parameter in the formWanPara
CVE-2024-32299 HIGH 8.8 MITIGATE Tenda FH1203 v2.0.1.6 firmware has a stack overflow vulnerability via the PPW parameter in the fromWizardHandl
CVE-2024-32283 HIGH 7.3 MITIGATE Tenda FH1203 V2.0.1.6 firmware has a command injection vulnerablility in formexeCommand function via the cmdin
CVE-2024-30607 HIGH 8.0 MITIGATE Tenda FH1203 v2.0.1.6 has a stack overflow vulnerability in the deviceId parameter of the saveParentControlInf

References

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