CVE-2022-50994
📛 CVE Title
(no title)
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.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 8.1 / 10
- CVSS vector
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Effective score
- 8.1 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2022-50994
- Linked Threat
- CVE-2022-50994 — CVE-2022-50994
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-08 13:16:34 UTC
- NVD last modified
- 2026-05-08 15:48:43 UTC
- NVD CVSS v3.1
- 8.1 / 10 HIGH source: disclosure@vulncheck.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Exploitability subscore
- 2.2 / 10
- Impact subscore
- 5.9 / 10
- EPSS score
- 0.0016 (probability of exploitation in next 30 days)
- EPSS percentile
- 36.65% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD-assigned CWE(s):
CWE-78
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-05-24 23:55 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2022-55966 - Assigner
- VulnCheck
- Published
- May 8, 2026, 12:35:08 PM
- Updated
- May 8, 2026, 1:58:11 PM
- EUVD base score (CVSS 4.0)
-
9.2 / 10
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 0.1600
- Vendors
- DrayTek
- Products
-
Vigor 2960 (0 <1.5.1.4)
ENISA 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.
EUVD references (3)
- https://www.draytek.co.uk/support/downloads/vigor-2960/older-firmware/firmware-1514?task=download.send&id=2597:readme-v2960-1514&catid=1251
- https://www.draytek.com/about/newsroom/2021/2021/end-of-life-notification-vigor2960
- https://www.vulncheck.com/advisories/draytek-vigor-2960-os-command-injection-via-mainfunction-cgi
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
MITRE references (1) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
Web references (6)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://www.cve.org/CVERecord?id=CVE-2022-50994 tenable:www.cve.org
- https://www.draytek.co.uk/support/downloads/vigor-2960/older-firmware/firmware-1514?task=download.send&id=2597:readme-v2960-1514&catid=1251 tenable:www.draytek.co.uk
- https://nvd.nist.gov/vuln/detail/CVE-2022-50994 tenable:nvd.nist.gov
- https://www.draytek.com/about/newsroom/2021/2021/end-of-life-notification-vigor2960 tenable:www.draytek.com
- https://www.first.org/epss/ tenable:www.first.org
- https://www.vulncheck.com/advisories/draytek-vigor-2960-os-command-injection-via-mainfunction-cgi tenable:www.vulncheck.com
NVD-tagged references (3)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://www.draytek.co.uk/support/downloads/vigor-2960/older-firmware/firmware-1514?task=download.send&id=2597:readme-v2960-1514&catid=1251 disclosure@vulncheck.com
- https://www.draytek.com/about/newsroom/2021/2021/end-of-life-notification-vigor2960 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/draytek-vigor-2960-os-command-injection-via-mainfunction-cgi disclosure@vulncheck.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:community.ui.com
Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...
2026-05-26 02:47 UTC -
web:cvevault.com
CVE Vault - Search and explore Common Vulnerabilities and Exposures ( CVE ) database. Find security vulnerabilities by CVE ID, vendor, severity, and year. Stay secure with comprehensive CVE information.
2026-05-26 02:47 UTC -
web:support.microsoft.com
The following summary outlines key issues addressed by this update. The bold text within the brackets indicates the item or area of the change. [Networking] Fixed: This update addresses a security issue in the Windows Routing and Remote Access Service (RRAS) management tool. If you connect to a malicious remote server, an attacker could disrupt the tool or run code on your device. For more ...
2026-05-26 02:47 UTC -
web:windows.gadgethacks.com
Patch dashboards may be blurring different device states: machines that installed the May update successfully, machines that received mitigation after a failed install attempt, and machines where the update is still failing repeatedly. Admins should verify the actual KB installation status before treating any affected system as compliant.
2026-05-26 02:47 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-26 02:47 UTC -
web:www.majorgeeks.com
But if you're not so fortunate, here's what you can do to fix this mess. Apply Known Issue Rollback (KIR) The Windows release health page has finally acknowledged the issue, after a slight delay. However, it only mentions installation failures, not the other problems users have complained about. But we'll take what we can get, I guess.
2026-05-26 02:47 UTC -
web:www.ninjaone.com
The sentiment surrounding KB5087054 is decidedly positive from a security perspective. Microsoft's proactive identification and patching of elevation of pr
2026-05-26 02:47 UTC -
web:www.nist.gov
NIST maintains the National Vulnerability Database (NVD), a repository of information on software and hardware flaws that can compromise computer security. This is a key piece of the nation's cybersecurity infrastructure.
2026-05-26 02:47 UTC -
web:www.windowscentral.com
Microsoft confirms that the Windows 11 May 2026 update fails with error 0x800f0922 on some computers, but a rollback and a fix are already available.
2026-05-26 02:47 UTC -
web:www.windowslatest.com
Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.
2026-05-26 02:47 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.