Cyber Resilience

CVE-2023-31477

HighPublic PoC

Published: 11 May 2023

Published
11 May 2023
Modified
27 January 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0043 62.9th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-31477 is a high-severity Path Traversal (CWE-22) vulnerability in Gl-Inet Gl-S20 Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 37.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A path traversal issue was discovered on GL.iNet devices before 3.216. Through the file sharing feature, it is possible to share an arbitrary directory, such as /tmp or /etc, because there is no server-side restriction to limit sharing to the…

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USB path.

CWE(s)
CWE-22

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

gl-inet
gl-s20 firmware
≤ 3.216
gl-inet
gl-x3000 firmware
≤ 3.216
gl-inet
gl-mt3000 firmware
≤ 3.216
gl-inet
gl-mt2500 firmware
≤ 3.216
gl-inet
gl-mt2500a firmware
≤ 3.216
gl-inet
gl-axt1800 firmware
≤ 3.216
gl-inet
gl-a1300 firmware
≤ 3.216
gl-inet
gl-ax1800 firmware
≤ 3.216
gl-inet
gl-sft1200 firmware
≤ 3.216
gl-inet
gl-mt1300 firmware
≤ 3.216
+22 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-10 Information Input Validation
addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

References