How severe is CVE-2023-50920?

CVE-2023-50920 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-50920 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50920?

CVE-2023-50920 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-2023-50920?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-50920 have an EU (EUVD) identifier?

Yes. CVE-2023-50920 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55651.

When was CVE-2023-50920 published?

CVE-2023-50920 was published on 2024-01-12 and last updated on 2026-06-17.

CVE-2023-50920

CVE-2023-50920 is a medium-severity vulnerability in Gl-inet Gl-ax1800 Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-384.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55651
Weakness: CWE-384
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. They assign the same session ID after each user reboot, allowing attackers to share session identifiers between different sessions and bypass authentication or access control measures. Attackers can impersonate legitimate users or perform unauthorized actions. 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-2023-50920?: An issue was discovered on GL.iNet devices before version 4.5.0. They assign the same session ID after each user reboot, allowing attackers to share session identifiers between different sessions and bypass authentication or access control measures. Attackers can impersonate legitimate users or perform unauthorized actions. 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-2023-50920?: CVE-2023-50920 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-50920 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50920?: CVE-2023-50920 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-2023-50920?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-50920 have an EU (EUVD) identifier?: Yes. CVE-2023-50920 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55651.
When was CVE-2023-50920 published?: CVE-2023-50920 was published on 2024-01-12 and last updated on 2026-06-17.

References

https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Authentication-bypass-seesion-ID.md

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:*:*:*:*:*:*:*

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