CVE-2022-50994Public exploitNetwork attack vector

Unauthenticated command execution via formpassword injection

Published May 8, 2026 · Updated May 8, 2026

OS command injection in DrayTek Vigor 2960 firmware before 1.5.1.4 allows remote attackers to execute commands through the CGI login handler. The handler passes the formpassword value without neutralizing shell metacharacters to otp_check.sh, which executes the injected command with web server privileges. The request needs a valid username for an account with mOTP enabled; successful exploitation grants command execution on the router.

CVSS severity9.2
Critical
EPSS probability1.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in DrayTek Vigor 2960 firmware before 1.5.1.4 allows remote attackers to execute commands through the CGI login handler. The handler passes the formpassword value without neutralizing shell metacharacters to otp_check.sh, which executes the injected command with web server privileges. The request needs a valid username for an account with mOTP enabled; successful exploitation grants command execution on the router.

The record

CVE
CVE-2022-50994
Published
May 8, 2026
Updated
May 8, 2026
Vendor
DrayTek
Product
Vigor 2960
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.5.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DrayTek · Vigor 2960version=0 <1.5.1.4

Published CVSS scores

9.2VulnCheck CNACVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo