CVE-2025-11386: A vulnerability was found in Tenda AC15 15.03.05.18

This month

HIGH 8.8MITIGATE

CVE-2025-11386 is a high-severity flaw (CVSS 8.8) affecting ac15 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Tenda AC15 15.03.05.18. The impacted element is an unknown function of the file /goform/SetDDNSCfg of the component POST Parameter Handler. The manipulation of the argument ddnsEn results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could 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	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-119, CWE-121
Published	2025-10-07
Last modified	2026-10-08

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-07 10:15 UTCPublished CVE record published
2026-10-08 22:10 UTCUpdated Record last modified

tenda ac15 firmware MITIGATE

Affected: 15.03.05.18

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.03.05.18

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-2025-11386?

ac15 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-11386 being exploited?

CVE-2025-11386 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-2025-11386 affect?

CVE-2025-11386 affects ac15 firmware. Severity is high (CVSS 8.8). A vulnerability was found in Tenda AC15 15.03.05.18. The impacted element is an unknown function of the file /goform/SetDDNSCfg of the component POST Parameter Handler. The manipulation of the argument ddnsEn results in stack-based buffer o

How urgent is CVE-2025-11386?

Priority 50/100. High severity; Public exploit reference

Related CVEs

CVE-2026-4975 HIGH 8.8 MITIGATE A vulnerability has been found in Tenda AC15 15.03.05.19
CVE-2025-10443 HIGH 8.8 MITIGATE MITIGATE A vulnerability was identified in Tenda AC9 and AC15 15.03.05.14/15.03.05.18
CVE-2025-10442 MEDIUM 6.3 MITIGATE MITIGATE A vulnerability was determined in Tenda AC9 and AC15 15.03.05.14
CVE-2025-11387 HIGH 8.8 MITIGATE A vulnerability was determined in Tenda AC15 15.03.05.18
CVE-2025-11388 HIGH 8.8 MITIGATE A vulnerability was identified in Tenda AC15 15.03.05.18

References

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