CVE-2026-41922

CRITICALNVD 9.39.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 5.0% (92nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-27117 (ENISA EUVD) · GHSA-8wgj-4v3p-3568 (GitHub Security Advisories)Source: ENISA EUVD

9.3EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 5.0%CVSS: 9.3Exploit: No code on recordExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender versions up to and including 1.02.0 as affected. No release containing a fix is confirmed on record.

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the wireless.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the sz11gChannel or PIN POST parameters. Attackers can exploit unsanitized parameter handling in the set_wifi_basic and set_wifi_do_wps functions to achieve remote code execution without authentication.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
73
EG Risk 73/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.
EPSS PROB
5.0%
EPSS %ILE
92nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
5.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 4, 2026

Last Modified

October 26, 2026

Advisory Details (3)

Auto-updated Sep 23, 2026
No fix on record yet.
Web page

WDR201A WiFi Extender OS Command Injection via wireless.cgi | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wdr201a-wifi-extender-os-command-injection-via-wireless-cgi
Web page

Oscilloscope Manufacturer, Measurement & Analysis Instruments, Mini Oscilloscope Supplier - Shenzhen Yipu Commercial and Trading Co., Ltd

https://www.made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015.%2CDistrict%2C%20Shenzhen%2C%20Guangdong%2C%20China
Web page

Teaching the Machine Where to Look: Scaling Embedded Vulnerability Research with AI | Street #CySec - Tales of a cybersecurity journey

https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-assisted-research/cybersecurity/cve/2026/05/04/Teaching_the_Machine_Where_to_Look.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 64× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 342 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 242 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 17:08 UTCEG score recompute
  2. 2026-10-29 17:08 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  3. 2026-10-29 16:33 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  4. 2026-10-28 16:32 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  5. 2026-10-28 15:01 UTCEG score recompute
  6. 2026-10-28 15:01 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  8. 2026-10-27 12:53 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  9. 2026-10-26 19:26 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  10. 2026-10-26 17:45 UTCEG score recompute
  11. 2026-10-26 17:45 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  12. 2026-10-26 16:31 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  13. 2026-10-25 16:33 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  14. 2026-10-25 15:06 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  15. 2026-10-25 14:29 UTCEG score recompute
  16. 2026-10-24 16:33 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  17. 2026-10-24 12:58 UTCEG score recompute
  18. 2026-10-24 12:58 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  19. 2026-10-23 16:31 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  20. 2026-10-23 10:50 UTCEG score recompute
  21. 2026-10-23 10:49 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  22. 2026-10-22 16:34 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  23. 2026-10-22 08:42 UTCEG score recompute
  24. 2026-10-22 08:41 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  25. 2026-10-21 16:33 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
Show 75 more
  1. 2026-10-21 06:35 UTCEG score recompute
  2. 2026-10-21 06:35 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  3. 2026-10-20 16:33 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  4. 2026-10-20 04:28 UTCEG score recompute
  5. 2026-10-20 04:27 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  6. 2026-10-19 16:32 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  7. 2026-10-19 02:19 UTCEG score recompute
  8. 2026-10-19 02:19 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  9. 2026-10-18 03:41 UTCEG score recompute
  10. 2026-10-18 00:13 UTCEG score recompute
  11. 2026-10-18 00:12 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  12. 2026-10-17 16:34 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  13. 2026-10-16 22:04 UTCEG score recompute
  14. 2026-10-16 22:04 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  15. 2026-10-16 16:42 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  16. 2026-10-15 18:35 UTCEG score recompute
  17. 2026-10-15 18:34 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  18. 2026-10-15 16:32 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  19. 2026-10-14 16:33 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  20. 2026-10-14 12:15 UTCEG score recompute
  21. 2026-10-14 12:15 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  22. 2026-10-13 16:34 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  23. 2026-10-13 10:07 UTCEG score recompute
  24. 2026-10-13 10:07 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  25. 2026-10-12 16:34 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  26. 2026-10-12 16:08 UTCEG score recompute
  27. 2026-10-12 08:00 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  28. 2026-10-11 19:49 UTCEG score recompute
  29. 2026-10-11 17:04 UTCEG score recompute
  30. 2026-10-11 14:30 UTCEG score recompute
  31. 2026-10-11 13:48 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  32. 2026-10-10 20:00 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  33. 2026-10-09 20:07 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  34. 2026-10-08 17:12 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  35. 2026-10-07 23:48 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  36. 2026-10-06 15:17 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  37. 2026-10-05 17:43 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  38. 2026-10-03 14:25 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  39. 2026-10-01 19:50 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  40. 2026-09-30 15:03 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  41. 2026-09-27 13:48 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  42. 2026-09-26 15:58 UTCEPSS rescoreEPSS 6.7% · 93rd percentile
  43. 2026-09-23 17:53 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  44. 2026-09-20 20:15 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  45. 2026-09-18 19:28 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  46. 2026-09-17 19:31 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  47. 2026-09-16 14:08 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  48. 2026-09-16 05:15 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  49. 2026-09-12 15:01 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  50. 2026-09-11 14:53 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  51. 2026-09-11 09:37 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  52. 2026-09-10 09:34 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  53. 2026-09-08 22:00 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  54. 2026-09-07 16:01 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  55. 2026-09-06 13:47 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  56. 2026-09-04 05:06 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  57. 2026-09-02 14:12 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  58. 2026-09-01 13:53 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  59. 2026-09-01 04:39 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  60. 2026-08-30 19:17 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  61. 2026-08-30 01:22 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  62. 2026-08-28 21:41 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  63. 2026-08-27 14:25 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  64. 2026-08-26 14:46 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  65. 2026-08-25 13:49 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  66. 2026-08-23 21:16 UTCEG score recompute
  67. 2026-08-23 21:16 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL
  68. 2026-08-23 00:19 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  69. 2026-08-21 23:49 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  70. 2026-08-20 22:55 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  71. 2026-08-19 17:03 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  72. 2026-08-18 13:48 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  73. 2026-08-17 13:47 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  74. 2026-08-17 13:06 UTCEG score recompute
  75. 2026-08-17 13:06 UTCGHSA enrichmentGHSA-8wgj-4v3p-3568 · GitHub severity CRITICAL

Frequently asked(5)

What is CVE-2026-41922?
CVE-2026-41922 is a critical-severity vulnerability; its CVE record was published on May 4, 2026. WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the wireless.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the sz11gChannel or PIN POST parameters. Attackers can…
When was CVE-2026-41922 made public?
CVE-2026-41922 was made public on May 4, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on May 4, 2026. EchelonGraph's copy of the record carries a last-modified date of October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-41922 actively exploited?
CVE-2026-41922 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.0% probability of exploitation in the next 30 days (92nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41922?
CVE-2026-41922 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-41922?
No fix for CVE-2026-41922 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix. The CVE record's CNA (VulnCheck) lists Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender versions up to and including 1.02.0 as affected. No release containing a fix is confirmed on record.

Dependency Blast Radius

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