CVE-2026-26794: GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a SQL injection vulnerability via the add_group() functi

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HIGH 8.8MITIGATE

CVE-2026-26794 is a high-severity flaw (CVSS 8.8) affecting ar300m16 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a SQL injection vulnerability via the add_group() function. This vulnerability allows attackers to execute arbitrary SQL database operations via a crafted HTTP request.

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	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-03-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gl-inet

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

Am I affected?

Timeline

2026-03-12 18:16 UTCPublished CVE record published
2026-06-17 10:26 UTCUpdated Record last modified

gl-inet ar300m16 firmware MITIGATE

Affected: 4.3.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.3.11

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-2026-26794?

ar300m16 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-26794 being exploited?

CVE-2026-26794 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-2026-26794 affect?

CVE-2026-26794 affects ar300m16 firmware. Severity is high (CVSS 8.8). GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a SQL injection vulnerability via the add_group() function. This vulnerability allows attackers to execute arbitrary SQL database operations via a crafted HTTP request.

How urgent is CVE-2026-26794?

Priority 46/100. High severity; Public exploit reference

Related CVEs

CVE-2026-26795 CRITICAL 9.8 MITIGATE GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability via the module paramet
CVE-2026-26793 CRITICAL 9.8 MITIGATE GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability via the set_config fun
CVE-2026-26792 CRITICAL 9.8 MITIGATE GL-iNet GL-AR300M16 v4.3.11 was discovered to contain multiple command injection vulnerabilities in the set_up
CVE-2026-26791 CRITICAL 9.8 MITIGATE GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability via the string port pa

References

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