CVE-2025-11327: A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318)

This month

HIGH 8.8MITIGATE

CVE-2025-11327 is a high-severity flaw (CVSS 8.8) affecting ac18 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318). This vulnerability affects unknown code of the file /goform/SetUpnpCfg. The manipulation of the argument upnpEn leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly 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 30%)
CISA exploited list	No
Weakness	CWE-119, CWE-121
Published	2025-10-06
Last modified	2026-10-09

Publisher (CNA): VulDB · Vendor: tenda

Last updated 2026-10-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-06 08:15 UTCPublished CVE record published
2026-10-09 10:10 UTCUpdated Record last modified

tenda ac18 firmware MITIGATE

Affected: 15.03.05.19\(6318\)

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

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-2025-11327?

ac18 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-11327 being exploited?

CVE-2025-11327 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-2025-11327 affect?

CVE-2025-11327 affects ac18 firmware. Severity is high (CVSS 8.8). A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318). This vulnerability affects unknown code of the file /goform/SetUpnpCfg. The manipulation of the argument upnpEn leads to stack-based buffer overflow. It is possible

How urgent is CVE-2025-11327?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2025-11326 HIGH 8.8 MITIGATE A weakness has been identified in Tenda AC18 15.03.05.19(6318)
CVE-2025-11328 HIGH 8.8 MITIGATE A vulnerability was detected in Tenda AC18 15.03.05.19(6318)
CVE-2025-11324 HIGH 8.8 MITIGATE A vulnerability was identified in Tenda AC18 15.03.05.19(6318)
CVE-2025-11325 HIGH 8.8 MITIGATE A security flaw has been discovered in Tenda AC18 15.03.05.19(6318)
CVE-2025-11120 HIGH 8.8 MITIGATE A weakness has been identified in Tenda AC8 16.03.34.06

References

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