CVE-2026-51668

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-31. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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

Incorrect access control in the setLanguageCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to modify language configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA SSVC

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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Sep 1, 2026
No patch confirmed yet.
generic

CVE-Vendor-Coordination/TOTOLINK/README.md at main · ShengWu00/CVE-Vendor-Coordination · GitHub

https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
generic

CVE-Vendor-Coordination/TOTOLINK/README.md at main · ShengWu00/CVE-Vendor-Coordination · GitHub

https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
generic

TOTOLINK | Wi-Fi 7, Mesh, 5G & Enterprise Networking

https://www.totolink.net/

Vendor Advisories for CVE-2026-51668(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 26× in last 7d / 102× 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 124 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51668?
CVE-2026-51668 is a high vulnerability published on August 31, 2026. Incorrect access control in the setLanguageCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to modify language configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
When was CVE-2026-51668 disclosed?
CVE-2026-51668 was first published on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51668 actively exploited?
CVE-2026-51668 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-51668?
CVE-2026-51668 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51668?
No fix for CVE-2026-51668 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. The vendor advisories EchelonGraph has for CVE-2026-51668 are linked in the Vendor Advisories panel on this page.

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