How severe is CVE-2023-50919?

CVE-2023-50919 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-50919 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50919?

CVE-2023-50919 primarily affects Gl-inet Gl-ax1800 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-50919?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2023-50919 have an EU (EUVD) identifier?

Yes. CVE-2023-50919 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55650.

When was CVE-2023-50919 published?

CVE-2023-50919 was published on 2024-01-12 and last updated on 2026-06-17.

CVE-2023-50919

CVE-2023-50919 is a critical-severity vulnerability in Gl-inet Gl-ax1800 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 48% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 48% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55650
Weakness: CWE-287
Affected product: Gl-inet Gl-ax1800 Firmware
Published: 2024-01-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-50919?: 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.
How severe is CVE-2023-50919?: CVE-2023-50919 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-50919 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50919?: CVE-2023-50919 primarily affects Gl-inet Gl-ax1800 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-50919?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-50919 have an EU (EUVD) identifier?: Yes. CVE-2023-50919 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55650.
When was CVE-2023-50919 published?: CVE-2023-50919 was published on 2024-01-12 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:o:gl-inet:gl-ax1800_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ax1800_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-axt1800_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-axt1800_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt3000_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt3000_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt2500_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt2500_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt6000_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt6000_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt1300_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt1300_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt300n-v2_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt300n-v2_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ar750s_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ar750s_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ar750_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ar750_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ar300m_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ar300m_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-b1300_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-b1300_firmware:4.4.6:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-a1300_firmware:4.3.7:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-a1300_firmware:4.4.6:*:*:*:*:*:*:*

More vulnerabilities in Gl-inet Gl-ax1800 Firmware

CVE-2023-50921 — Critical (CVSS 9.8): An issue was discovered on GL.iNet devices through 4.5.0. Attackers can invoke the add_user interface in the system…
CVE-2023-47463 — Critical (CVSS 9.8): Insecure Permissions vulnerability in GL.iNet AX1800 version 4.0.0 before 4.5.0 allows a remote attacker to execute…
CVE-2023-47462 — Critical (CVSS 9.8): Insecure Permissions vulnerability in GL.iNet AX1800 v.3.215 and before allows a remote attacker to execute arbitrary…
CVE-2023-31475 — Critical (CVSS 9.8): An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer…
CVE-2023-31471 — Critical (CVSS 9.8): An issue was discovered on GL.iNet devices before 3.216. Through the software installation feature, it is possible to…
CVE-2023-47464 — High (CVSS 8.8): Insecure Permissions vulnerability in GL.iNet AX1800 version 4.0.0 before 4.5.0 allows a remote attacker to execute…

All CVEs affecting Gl-inet Gl-ax1800 Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →