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CVE-2022-50994

DrayTek Vigor 2960 < 1.5.1.4 OS Command Injection via mainfunction.cgi

Published: May 8, 2026Updated: May 8, 2026 Sources: CVE List NVDCWE-78
8.1HIGH
NVD MITRE
EPSS Score
1.4%
Top 30.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

DrayTek Vigor 2960 firmware versions prior to 1.5.1.4 contain an OS command injection vulnerability in the CGI login handler that allows unauthenticated remote attackers to execute arbitrary commands by injecting shell metacharacters into the formpassword parameter. Attackers can exploit unsanitized input passed to the otp_check.sh script to achieve remote code execution with web server privileges. Exploitation requires knowledge of a valid username and that the target account has MOTP authentication enabled.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

Vigor 2960DrayTekNetworking Infrastructure
draytekcommercialTWNetworking Infrastructureaka draytek corp.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
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References

https://www.draytek.co.uk/support/downloads/vigor-2960/older-firmware/firmware-1514?task=download.send&id=2597:readme-v2960-1514&catid=1251
draytek.co.uk
https://www.draytek.com/about/newsroom/2021/2021/end-of-life-notification-vigor2960
draytek.com
https://www.vulncheck.com/advisories/draytek-vigor-2960-os-command-injection-via-mainfunction-cgi
vulncheck.com

Timeline

Published
May 8, 2026
Last Updated
May 8, 2026

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