Which products and versions are affected by CVE-2023-50919?

Affected: Gl-A1300 Firmware (Gl-Inet) versions 4.3.7, 4.4.6; Gl-Ar300m Firmware (Gl-Inet) versions 4.3.7, 4.4.6; Gl-Ar750 Firmware (Gl-Inet) versions 4.3.7, 4.4.6, among others. The full list is in the CVE brief.

Is CVE-2023-50919 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Sep 3, 2025.

Is CVE-2023-50919 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2023-50919?

Public exploit code is available.

Is there a fix for CVE-2023-50919?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2023-50919 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Emerging threatsCritical

CVE-2023-50919Gl-A1300 Firmware Authentication Bypass

An issue was discovered on GL.iNet devices before version 4.5.0.

Published Jan 12, 2024 · Updated Jun 3, 2025

Key Facts

Patch immediately

CVE-2023-50919 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Gl-A1300 Firmware (Gl-Inet), Gl-Ar300m Firmware (Gl-Inet), Gl-Ar750 Firmware (Gl-Inet) and 9 more products.
It is exploited in the wild, listed in Industry KEV feed since Sep 3, 2025. Public exploit code is available.
EPSS estimates a 48% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

48%

Higher than 98.8% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

57/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Sep 3, 2025

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Description

An issue was discovered on GL.iNet devices before version 4.5.0. There is an NGINX authentication bypass via Lua string pattern matching. This affects A1300 4.4.6, AX1800 4.4.6, AXT1800 4.4.6, MT3000 4.4.6, MT2500 4.4.6, MT6000 4.5.0, MT1300 4.3.7, MT300N-V2 4.3.7, AR750S 4.3.7, AR750 4.3.7, AR300M 4.3.7, and B1300 4.3.7.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Sep 3, 2025	n/a	Not reported

Affected Products

24 affected entries in total

Product	Affected versions	Fixed in
Gl-A1300 FirmwareGl-Inet	4.3.7, 4.4.6	n/a
Gl-Ar300m FirmwareGl-Inet	4.3.7, 4.4.6	n/a
Gl-Ar750 FirmwareGl-Inet	4.3.7, 4.4.6	n/a
Gl-Ar750s FirmwareGl-Inet	4.3.7, 4.4.6	n/a
Gl-Ax1800 FirmwareGl-Inet	4.3.7, 4.4.6	n/a

7 more affected products in the full CVE brief

Timeline

Publicly disclosed
Jan 12, 2024
Last updated
Jun 3, 2025
Added to Industry KEV feed
Sep 3, 2025

Weakness Type

CWE-287 Improper Authentication

References

FAQ

Common Questions.

An issue was discovered on GL.iNet devices before version 4.5.0.
Affected: Gl-A1300 Firmware (Gl-Inet) versions 4.3.7, 4.4.6; Gl-Ar300m Firmware (Gl-Inet) versions 4.3.7, 4.4.6; Gl-Ar750 Firmware (Gl-Inet) versions 4.3.7, 4.4.6, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Sep 3, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2023-50919 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.