CVE-2026-5526: A security flaw has been discovered in Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1

Routine

HIGH 7.3REMOTEMITIGATE

CVE-2026-5526 is a high-severity flaw (CVSS 7.3) affecting 4g03 pro 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 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1. Affected by this vulnerability is an unknown functionality of the file /bin/httpd. The manipulation results in improper access controls. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-266, CWE-284
Published	2026-04-04
Last modified	2026-07-24

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-04 23:16 UTCPublished CVE record published
2026-07-24 09:10 UTCUpdated Record last modified

tenda 4g03 pro firmware MITIGATE

Affected: 04.03.01.53

Fixed in: no fixed release known

Safe to downgrade to: a release before 04.03.01.53

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-2026-5526?

4g03 pro firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-5526 being exploited?

CVE-2026-5526 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-2026-5526 affect?

CVE-2026-5526 affects 4g03 pro firmware. Severity is high (CVSS 7.3). A security flaw has been discovered in Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1. Affected by this vulnerability is an unknown functionality of the file /bin/httpd. The manipulation results in improper access controls. The attack

How urgent is CVE-2026-5526?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Software pages

Apache HTTP Server vulnerabilities

Related CVEs

CVE-2026-5527 MEDIUM 5.3 MITIGATE A weakness has been identified in Tenda 4G03 Pro 1.0/1.0re/01.bin/04.03.01.53

References

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