CVE-2022-27642

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-03-29. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
8.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-15854.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

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 (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.9%
EPSS %ILE
57th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

Published

March 29, 2023

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Aug 26, 2026
No fix on record yet.
Web page

ZDI-22-518 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-22-518/
Web page

Security Advisory for Multiple Vulnerabilities on Multiple Products, PSV-2021-0327 - NETGEAR Support

https://kb.netgear.com/000064723/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0327

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 27× 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 88 of 167 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. 12 repeat rows among the latest 100 are merged into the row they repeat. The 79 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:44 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  2. 2026-10-10 19:56 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  3. 2026-10-09 20:04 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  4. 2026-10-08 16:40 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  5. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  6. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  7. 2026-10-05 17:40 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  8. 2026-10-04 23:19 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  9. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  10. 2026-10-02 16:23 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  11. 2026-09-30 15:53 UTCEG score recompute
  12. 2026-09-30 15:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  13. 2026-09-29 15:16 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  14. 2026-09-28 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  15. 2026-09-27 13:42 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  16. 2026-09-26 15:54 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  17. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  18. 2026-09-24 14:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  19. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  20. 2026-09-22 14:44 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  21. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  22. 2026-09-19 15:38 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  23. 2026-09-18 19:24 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  24. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  25. 2026-09-15 03:06 UTCEPSS rescoreEPSS 0.9% · 57th percentile
Show 63 more
  1. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  2. 2026-09-12 14:57 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  3. 2026-09-11 14:49 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  4. 2026-09-11 09:33 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  5. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  6. 2026-09-07 15:58 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  7. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  8. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  9. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  10. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  11. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  12. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  13. 2026-08-30 19:14 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  14. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  15. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  16. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  17. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  18. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  19. 2026-08-24 14:13 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  20. 2026-08-23 00:16 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  21. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  22. 2026-08-20 22:52 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  23. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  24. 2026-08-18 13:45 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  25. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  26. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  27. 2026-08-16 02:11 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  28. 2026-08-15 01:27 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  29. 2026-08-13 21:57 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  30. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  31. 2026-08-11 13:38 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  32. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  33. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  34. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  35. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  36. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  37. 2026-08-04 15:07 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  38. 2026-08-04 10:35 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  39. 2026-08-03 10:33 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  40. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  41. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  42. 2026-07-30 16:25 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  43. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  44. 2026-07-28 15:33 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  45. 2026-07-26 14:52 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  46. 2026-07-25 14:15 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  47. 2026-07-24 14:15 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  48. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  49. 2026-07-23 02:10 UTCEG score recompute
  50. 2026-07-22 22:57 UTCEG score recompute
  51. 2026-07-22 14:06 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  52. 2026-07-21 15:22 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  53. 2026-07-20 17:05 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  54. 2026-07-19 14:29 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  55. 2026-07-19 02:27 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  56. 2026-07-18 10:02 UTCEPSS rescoreEPSS 0.9% · 55th percentile
  57. 2026-07-16 17:00 UTCEPSS rescoreEPSS 0.9% · 54th percentile
  58. 2026-07-15 16:56 UTCEPSS rescoreEPSS 0.9% · 54th percentile
  59. 2026-07-15 01:58 UTCEPSS rescoreEPSS 0.9% · 54th percentile
  60. 2026-07-13 22:27 UTCEPSS rescoreEPSS 0.9% · 54th percentile
  61. 2026-07-13 06:11 UTCEPSS rescoreEPSS 0.9% · 54th percentile
  62. 2026-07-12 05:44 UTCEPSS rescoreEPSS 0.9% · 54th percentile
  63. 2026-07-11 08:25 UTCEPSS rescoreEPSS 0.9% · 54th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-27642?
CVE-2022-27642 is a high-severity vulnerability; its CVE record was published on March 29, 2023. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service. The issue results from incorrect…
When was the CVE record for CVE-2022-27642 published?
The CVE record for CVE-2022-27642 was published on March 29, 2023. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2022-27642 actively exploited?
CVE-2022-27642 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-27642?
CVE-2022-27642 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2022-27642?
No fix for CVE-2022-27642 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-27642

Explore →

Is Your Infrastructure Affected by CVE-2022-27642?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs