CVE-2026-51990

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-16. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

An issue in Sogou Sogou Input Method < 16.3.0.3498 (fixed in 16.3.0.3498) allows a remote attacker to execute arbitrary code via the biz_helper.exe component

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
59%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 22, 2026

Advisory Details (2)

Auto-updated Sep 22, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

Gen Blogs | Gray Rabbits and the Tale of a One-Click Backdoor

https://www.gendigital.com/blog/insights/research/one-click-backdoor-sogou
generic

搜狗搜索引擎 - 上网从搜狗开始

http://sogou.com

Vendor Advisories for CVE-2026-51990(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 52× in last 7d / 64× 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. 2026-09-25 09:40 UTCGHSA enrichment
  2. 2026-09-25 05:38 UTCGHSA enrichment
  3. 2026-09-25 01:36 UTCGHSA enrichment
  4. 2026-09-24 21:33 UTCGHSA enrichment
  5. 2026-09-24 16:40 UTCEG score recompute
  6. 2026-09-24 16:40 UTCGHSA enrichment
  7. 2026-09-24 12:34 UTCGHSA enrichment
  8. 2026-09-24 08:32 UTCGHSA enrichment
  9. 2026-09-24 04:30 UTCGHSA enrichment
  10. 2026-09-24 00:27 UTCGHSA enrichment
  11. 2026-09-23 20:25 UTCEG score recompute
  12. 2026-09-23 20:25 UTCGHSA enrichment
  13. 2026-09-23 17:53 UTCEPSS rescore
  14. 2026-09-23 16:23 UTCGHSA enrichment
  15. 2026-09-23 12:21 UTCGHSA enrichment
  16. 2026-09-23 08:19 UTCGHSA enrichment
  17. 2026-09-23 04:17 UTCGHSA enrichment
  18. 2026-09-23 00:15 UTCGHSA enrichment
  19. 2026-09-22 20:13 UTCGHSA enrichment
  20. 2026-09-22 19:38 UTCGHSA enrichment
  21. 2026-09-22 15:36 UTCEG score recompute
  22. 2026-09-22 15:36 UTCGHSA enrichment
  23. 2026-09-22 11:34 UTCGHSA enrichment
  24. 2026-09-22 07:32 UTCGHSA enrichment
  25. 2026-09-22 03:30 UTCGHSA enrichment
Show 39 more
  1. 2026-09-21 23:28 UTCEG score recompute
  2. 2026-09-21 23:28 UTCGHSA enrichment
  3. 2026-09-21 19:26 UTCGHSA enrichment
  4. 2026-09-21 15:24 UTCGHSA enrichment
  5. 2026-09-21 11:22 UTCGHSA enrichment
  6. 2026-09-21 07:19 UTCGHSA enrichment
  7. 2026-09-21 03:14 UTCGHSA enrichment
  8. 2026-09-20 23:12 UTCEG score recompute
  9. 2026-09-20 23:11 UTCGHSA enrichment
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-20 19:04 UTCGHSA enrichment
  12. 2026-09-20 15:01 UTCGHSA enrichment
  13. 2026-09-20 10:59 UTCGHSA enrichment
  14. 2026-09-20 06:57 UTCGHSA enrichment
  15. 2026-09-20 02:42 UTCGHSA enrichment
  16. 2026-09-19 22:40 UTCGHSA enrichment
  17. 2026-09-19 18:38 UTCEG score recompute
  18. 2026-09-19 18:38 UTCGHSA enrichment
  19. 2026-09-19 14:36 UTCGHSA enrichment
  20. 2026-09-19 10:32 UTCGHSA enrichment
  21. 2026-09-19 06:24 UTCGHSA enrichment
  22. 2026-09-19 02:22 UTCGHSA enrichment
  23. 2026-09-18 22:20 UTCEG score recompute
  24. 2026-09-18 22:20 UTCGHSA enrichment
  25. 2026-09-18 19:28 UTCEPSS rescore
  26. 2026-09-18 18:17 UTCGHSA enrichment
  27. 2026-09-18 14:15 UTCGHSA enrichment
  28. 2026-09-18 10:09 UTCGHSA enrichment
  29. 2026-09-18 06:07 UTCGHSA enrichment
  30. 2026-09-18 02:05 UTCGHSA enrichment
  31. 2026-09-17 22:03 UTCEG score recompute
  32. 2026-09-17 22:03 UTCGHSA enrichment
  33. 2026-09-17 18:01 UTCGHSA enrichment
  34. 2026-09-17 17:06 UTCEG score recompute▲ 9.80
  35. 2026-09-17 17:06 UTCGHSA enrichment
  36. 2026-09-17 17:04 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  37. 2026-09-16 18:22 UTCNVD update
  38. 2026-09-16 17:38 UTCEG score recompute
  39. 2026-09-16 17:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51990?
CVE-2026-51990 is a critical vulnerability published on September 16, 2026. An issue in Sogou Sogou Input Method < 16.3.0.3498 (fixed in 16.3.0.3498) allows a remote attacker to execute arbitrary code via the biz_helper.exe component
When was CVE-2026-51990 disclosed?
CVE-2026-51990 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51990 actively exploited?
CVE-2026-51990 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 41.2% of all scored CVEs.
What is the CVSS score of CVE-2026-51990?
CVE-2026-51990 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51990?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51990, 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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