CVE-2026-44089

CRITICALPre-NVD 9.49.4
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.4Exploit: None knownExposed: 0

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

Totolink EX1200L router is vulnerable to Buffer Overflow in the login functionality in cgi-bin/cstecgi.cgi endpoint. This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.

Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: 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
Severity94% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 23, 2026

Advisory Details (2)

Auto-updated Jun 23, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-44089(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 18× in last 7d / 153× 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 185 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-44089?
CVE-2026-44089 is a critical vulnerability published on June 23, 2026. Totolink EX1200L router is vulnerable to Buffer Overflow in the login functionality in cgi-bin/cstecgi.cgi endpoint. This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing…
When was CVE-2026-44089 disclosed?
CVE-2026-44089 was first published in the National Vulnerability Database on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44089 actively exploited?
CVE-2026-44089 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 86.1% of all scored CVEs.
What is the CVSS score of CVE-2026-44089?
CVE-2026-44089 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-44089?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44089, 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

Explore the affected products and dependency analysis for CVE-2026-44089

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