Vulnerability · 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.
Published Apr 4, 2026 · catalog updated Jul 24, 2026 · 4g03 pro firmware
Check if you run it
No confirmed exploitation is on record for CVE-2026-5526. EPSS is 0.65%. Act only if a listed version of 4g03 pro firmware is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.65%
- Remediation
- Advisory link
- Affected products
- cpe tenda/4g03 pro firmware
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe tenda/4g03 pro firmware04.03.01.53
How to fix CVE-2026-5526
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-5526. EPSS is 0.65%. Act only if a listed version of 4g03 pro firmware is installed.
Which versions are affected?
Compare what you have installed with tenda/4g03 pro firmware 04.03.01.53. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-266; CWE-284: Improper Access Control. EPSS 0.65%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 4, 2026 · NIST NVD
Detected
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.
Jul 24, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-5526
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-5526
30-day exploitation probability 0.6%
first.org - NIST NVDVulnerability recordCVE-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. 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 explo
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.