CVE-2026-84777

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-09-03. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

Unauthenticated Broken Authentication in Really Simple SSL <= 9.8.0 versions.

CVSS v3
7.4
EG Score
7.4(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 3, 2026
No patch confirmed yet.
generic

Broken Authentication in WordPress Really Simple SSL Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/really-simple-ssl/vulnerability/wordpress-really-simple-ssl-plugin-9-8-0-2fa-bypass-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-84777(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 62× 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.

  1. 2026-09-19 17:07 UTCEG score recompute
  2. 2026-09-19 17:07 UTCGHSA enrichment
  3. 2026-09-19 04:52 UTCEG score recompute
  4. 2026-09-19 04:52 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 16:37 UTCGHSA enrichment
  7. 2026-09-18 04:22 UTCEG score recompute
  8. 2026-09-18 04:22 UTCGHSA enrichment
  9. 2026-09-17 19:32 UTCEPSS rescore
  10. 2026-09-17 16:07 UTCGHSA enrichment
  11. 2026-09-17 03:52 UTCGHSA enrichment
  12. 2026-09-16 15:37 UTCEG score recompute
  13. 2026-09-16 15:37 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-16 03:05 UTCGHSA enrichment
  17. 2026-09-15 14:50 UTCEG score recompute
  18. 2026-09-15 14:50 UTCGHSA enrichment
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-15 02:35 UTCGHSA enrichment
  22. 2026-09-14 14:20 UTCGHSA enrichment
  23. 2026-09-14 02:05 UTCEG score recompute
  24. 2026-09-14 02:05 UTCGHSA enrichment
  25. 2026-09-13 13:50 UTCGHSA enrichment
Show 37 more
  1. 2026-09-13 01:35 UTCEG score recompute
  2. 2026-09-13 01:35 UTCGHSA enrichment
  3. 2026-09-12 13:19 UTCGHSA enrichment
  4. 2026-09-12 01:04 UTCEG score recompute
  5. 2026-09-12 01:04 UTCGHSA enrichment
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 12:49 UTCEG score recompute
  9. 2026-09-11 12:49 UTCGHSA enrichment
  10. 2026-09-11 00:08 UTCGHSA enrichment
  11. 2026-09-10 11:53 UTCEG score recompute
  12. 2026-09-10 11:53 UTCGHSA enrichment
  13. 2026-09-09 23:38 UTCGHSA enrichment
  14. 2026-09-09 11:22 UTCGHSA enrichment
  15. 2026-09-08 23:07 UTCEG score recompute
  16. 2026-09-08 23:07 UTCGHSA enrichment
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-08 09:59 UTCGHSA enrichment
  19. 2026-09-07 20:44 UTCEG score recompute
  20. 2026-09-07 20:44 UTCGHSA enrichment
  21. 2026-09-07 08:29 UTCGHSA enrichment
  22. 2026-09-06 20:13 UTCEG score recompute
  23. 2026-09-06 20:13 UTCGHSA enrichment
  24. 2026-09-06 13:48 UTCEPSS rescore
  25. 2026-09-06 07:58 UTCGHSA enrichment
  26. 2026-09-05 19:42 UTCEG score recompute
  27. 2026-09-05 19:42 UTCGHSA enrichment
  28. 2026-09-05 15:31 UTCEPSS rescore
  29. 2026-09-05 07:28 UTCGHSA enrichment
  30. 2026-09-04 19:13 UTCEG score recompute
  31. 2026-09-04 19:13 UTCGHSA enrichment
  32. 2026-09-04 06:58 UTCGHSA enrichment
  33. 2026-09-03 18:41 UTCEG score recompute
  34. 2026-09-03 18:40 UTCGHSA enrichment
  35. 2026-09-03 17:35 UTCEG score recompute
  36. 2026-09-03 16:34 UTCEG score recompute
  37. 2026-09-03 16:33 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-84777?
CVE-2026-84777 is a high vulnerability published on September 3, 2026. Unauthenticated Broken Authentication in Really Simple SSL <= 9.8.0 versions.
When was CVE-2026-84777 disclosed?
CVE-2026-84777 was first published in the National Vulnerability Database on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84777 actively exploited?
CVE-2026-84777 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.7% of all scored CVEs.
What is the CVSS score of CVE-2026-84777?
CVE-2026-84777 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-84777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84777, 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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