CVE-2022-50994

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-08. the CNA's CVSS baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
72%
KEV
Not listed

Published

May 8, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated May 8, 2026
No patch confirmed yet.
generic

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

https://www.vulncheck.com/advisories/draytek-vigor-2960-os-command-injection-via-mainfunction-cgi
generic

End of Life Notification : Vigor2960 | DrayTek

https://www.draytek.com/about/newsroom/2021/2021/end-of-life-notification-vigor2960

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 28× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 243 total refreshes for this CVE.

  1. 2026-09-15 03:07 UTCEPSS rescore
  2. 2026-09-11 14:50 UTCEPSS rescore
  3. 2026-09-11 09:34 UTCEPSS rescore
  4. 2026-09-08 21:57 UTCEPSS rescore
  5. 2026-09-07 15:59 UTCEPSS rescore
  6. 2026-09-06 13:45 UTCEPSS rescore
  7. 2026-09-05 15:25 UTCEPSS rescore
  8. 2026-09-04 13:57 UTCEPSS rescore
  9. 2026-09-04 05:04 UTCEPSS rescore
  10. 2026-09-02 14:09 UTCEPSS rescore
  11. 2026-09-01 13:51 UTCEPSS rescore
  12. 2026-08-30 19:15 UTCEPSS rescore
  13. 2026-08-30 01:19 UTCEPSS rescore
  14. 2026-08-28 21:38 UTCEPSS rescore
  15. 2026-08-27 14:22 UTCEPSS rescore
  16. 2026-08-26 14:43 UTCEPSS rescore
  17. 2026-08-25 13:46 UTCEPSS rescore
  18. 2026-08-23 19:26 UTCEG score recompute
  19. 2026-08-23 19:26 UTCGHSA enrichment
  20. 2026-08-23 00:17 UTCEPSS rescore
  21. 2026-08-21 23:46 UTCEPSS rescore
  22. 2026-08-20 22:53 UTCEPSS rescore
  23. 2026-08-19 17:01 UTCEPSS rescore
  24. 2026-08-18 13:45 UTCEPSS rescore
  25. 2026-08-17 13:44 UTCEPSS rescore
Show 75 more
  1. 2026-08-17 11:58 UTCEG score recompute
  2. 2026-08-17 11:58 UTCGHSA enrichment
  3. 2026-08-16 14:53 UTCEPSS rescore
  4. 2026-08-16 04:39 UTCEG score recompute
  5. 2026-08-16 04:39 UTCGHSA enrichment
  6. 2026-08-16 02:12 UTCEPSS rescore
  7. 2026-08-15 01:27 UTCEPSS rescore
  8. 2026-08-14 15:59 UTCGHSA enrichment
  9. 2026-08-14 03:14 UTCEG score recompute
  10. 2026-08-14 03:14 UTCGHSA enrichment
  11. 2026-08-13 21:58 UTCEPSS rescore
  12. 2026-08-13 06:00 UTCGHSA enrichment
  13. 2026-08-12 16:50 UTCEG score recompute
  14. 2026-08-12 16:50 UTCGHSA enrichment
  15. 2026-08-12 13:48 UTCEPSS rescore
  16. 2026-08-11 15:53 UTCEG score recompute
  17. 2026-08-11 15:53 UTCGHSA enrichment
  18. 2026-08-11 01:20 UTCEG score recompute
  19. 2026-08-11 01:20 UTCGHSA enrichment
  20. 2026-08-10 03:56 UTCGHSA enrichment
  21. 2026-08-09 15:11 UTCEG score recompute
  22. 2026-08-09 15:11 UTCGHSA enrichment
  23. 2026-08-09 13:44 UTCEPSS rescore
  24. 2026-08-09 13:44 UTCEPSS rescore
  25. 2026-08-09 02:27 UTCEG score recompute
  26. 2026-08-09 02:27 UTCGHSA enrichment
  27. 2026-08-08 16:34 UTCEPSS rescore
  28. 2026-08-08 03:15 UTCEG score recompute
  29. 2026-08-08 03:15 UTCGHSA enrichment
  30. 2026-08-07 16:24 UTCEPSS rescore
  31. 2026-08-07 14:30 UTCGHSA enrichment
  32. 2026-08-07 01:46 UTCEG score recompute
  33. 2026-08-07 01:46 UTCGHSA enrichment
  34. 2026-08-06 13:44 UTCEPSS rescore
  35. 2026-08-06 10:58 UTCGHSA enrichment
  36. 2026-08-05 22:11 UTCEG score recompute
  37. 2026-08-05 22:10 UTCGHSA enrichment
  38. 2026-08-05 19:15 UTCEPSS rescore
  39. 2026-08-04 15:07 UTCEPSS rescore
  40. 2026-08-04 10:35 UTCEPSS rescore
  41. 2026-08-03 19:33 UTCEG score recompute
  42. 2026-08-03 19:33 UTCGHSA enrichment
  43. 2026-08-03 10:33 UTCEPSS rescore
  44. 2026-08-03 04:56 UTCGHSA enrichment
  45. 2026-08-02 16:11 UTCGHSA enrichment
  46. 2026-08-02 03:26 UTCEG score recompute
  47. 2026-08-02 03:26 UTCGHSA enrichment
  48. 2026-08-02 02:24 UTCEPSS rescore
  49. 2026-08-01 04:13 UTCEPSS rescore
  50. 2026-08-01 04:13 UTCEPSS rescore
  51. 2026-07-30 16:25 UTCEPSS rescore
  52. 2026-07-30 01:28 UTCEPSS rescore
  53. 2026-07-28 15:34 UTCEPSS rescore
  54. 2026-07-26 14:52 UTCEPSS rescore
  55. 2026-07-26 14:52 UTCEPSS rescore
  56. 2026-07-25 14:16 UTCEPSS rescore
  57. 2026-07-24 14:15 UTCEPSS rescore
  58. 2026-07-23 14:16 UTCEPSS rescore
  59. 2026-07-23 14:16 UTCEPSS rescore
  60. 2026-07-23 02:17 UTCEG score recompute
  61. 2026-07-22 23:04 UTCEG score recompute
  62. 2026-07-22 14:06 UTCEPSS rescore
  63. 2026-07-22 14:06 UTCEPSS rescore
  64. 2026-07-21 15:23 UTCEPSS rescore
  65. 2026-07-21 15:23 UTCEPSS rescore
  66. 2026-07-20 17:05 UTCEPSS rescore
  67. 2026-07-19 14:29 UTCEPSS rescore
  68. 2026-07-19 14:29 UTCEPSS rescore
  69. 2026-07-19 02:27 UTCEPSS rescore
  70. 2026-07-19 02:27 UTCEPSS rescore
  71. 2026-07-18 10:03 UTCEPSS rescore
  72. 2026-07-18 10:03 UTCEPSS rescore
  73. 2026-07-16 17:00 UTCEPSS rescore
  74. 2026-07-15 16:56 UTCEPSS rescore
  75. 2026-07-15 16:56 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-50994?
CVE-2022-50994 is a high vulnerability published on May 8, 2026. 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…
When was CVE-2022-50994 disclosed?
CVE-2022-50994 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-50994 actively exploited?
CVE-2022-50994 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 28.4% of all scored CVEs.
What is the CVSS score of CVE-2022-50994?
CVE-2022-50994 has a CVSS v4.0 base score of 8.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2022-50994?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-50994, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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