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Vulnerability Assessment

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered on GL.iNet devices before 3.216. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

An issue was discovered on GL.iNet devices before 3.216. Through the software installation feature, it is possible to inject arbitrary parameters in a request to cause opkg to obtain a list of files in a specific directory, by using the regex feature in a package name. Affected products include: Gl-Inet Gl-S20 Firmware, Gl-Inet Gl-X3000 Firmware, Gl-Inet Gl-Mt3000 Firmware, Gl-Inet Gl-Mt2500 Firmware, Gl-Inet Gl-Mt2500A Firmware. Version information: before 3.216..

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

An issue was discovered on GL.iNet devices before 3.216. Through the software installation feature, it is possible to inject arbitrary parameters in a request to cause opkg to obtain a list of files in a specific directory, by using the regex feature in a package name.

Threat Intelligence Overview

EPSS Score
0.8%
Top 47% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.8%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +38
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Affected Products (CPE)NVD

cpe:2.3:o:gl-inet:gl-s20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-x3000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt2500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt2500a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-axt1800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-a1300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ax1800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-sft1200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mt1300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-e750_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mv1000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-mv1000w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-s10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-s200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-s1300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-sf1200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-b1300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-b2200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:gl-inet:gl-ap1300_firmware:*:*:*:*:*:*:*:*
+ 12 more

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CVE-2023-50921 CRITICAL
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References

Advisories & patches
ADVISORY https://www.gl-inet.com

Search Externally

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