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CVE-2023-50919

66
FAUCET Score

CVE-2023-50919 describes a critical NGINX authentication bypass vulnerability affecting numerous GL.iNet router models running firmware versions prior to 4.5.0. This flaw, stemming from improper Lua string pattern matching, allows unauthenticated attackers to bypass security controls. With a CVSS score of 9.8 (Critical), it presents a high risk of complete compromise (confidentiality, integrity, availability) due to its network-based attack vector and low attack complexity. While not yet observed in active exploitation (KEV), a Metasploit module exists, indicating readily available exploit code, though community discussion and media coverage remain minimal.

Impacted Technologies

VendorProductVersion(s)CPE
4.3.7CPE matchmatch criteria
cpe:2.3:o:gl-inet:gl-ax1800_firmware:4.3.7:*:*:*:*:*:*:*
4.4.6CPE matchmatch criteria
cpe:2.3:o:gl-inet:gl-ax1800_firmware:4.4.6:*:*:*:*:*:*:*
4.3.7CPE matchmatch criteria
cpe:2.3:o:gl-inet:gl-axt1800_firmware:4.3.7:*:*:*:*:*:*:*
4.4.6CPE matchmatch criteria
cpe:2.3:o:gl-inet:gl-axt1800_firmware:4.4.6:*:*:*:*:*:*:*
4.3.7CPE matchmatch criteria
cpe:2.3:o:gl-inet:gl-mt3000_firmware:4.3.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
47.80%
Probability of exploitation in next 30 days
EPSS Percentile
98.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: GL.iNet Unauthenticated Remote Command Execution via the logread module. · Dec 10, 2023
This CVE's current EPSS score of 0.4780 is in the 96th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

packetstormsecurity.com / files/176708/GL.iNet-Unauthenticated-Remote-Command-Execution.html
github.com / gl-inet/CVE-issues/blob/main/4.0.0/Authentication-bypass.md
ExploitIssue TrackingVendor Advisory