CVE-2026-76591

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: LOW) published 2026-08-20. 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 weekElevated
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.4Exploit: Elevated riskExposed: 0

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

A security flaw has been discovered in TRENDnet TEW-755AP up to 20260702. This affects the function log_email_server of the file /cgi-bin/email.cgi of the component ssi. Performing a manipulation results in command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
70%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 21, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

CVE/team15_20260702/14_755ap-ssi-cmdi/poc/poc-ssi-injection.py at main · meishigana/CVE · GitHub

https://github.com/meishigana/CVE/blob/main/team15_20260702/14_755ap-ssi-cmdi/poc/poc-ssi-injection.py
generic

CVE/team15_20260702/14_755ap-ssi-cmdi at main · meishigana/CVE · GitHub

https://github.com/meishigana/CVE/tree/main/team15_20260702/14_755ap-ssi-cmdi

Vendor Advisories for CVE-2026-76591(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 108× 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 128 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-76591?
CVE-2026-76591 is a high vulnerability published on August 19, 2026. A security flaw has been discovered in TRENDnet TEW-755AP up to 20260702. This affects the function logemailserver of the file /cgi-bin/email.cgi of the component ssi. Performing a manipulation results in command injection. The attack is possible to be carried out remotely. The exploit has been…
When was CVE-2026-76591 disclosed?
CVE-2026-76591 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76591 actively exploited?
CVE-2026-76591 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 30.5% of all scored CVEs.
What is the CVSS score of CVE-2026-76591?
CVE-2026-76591 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-76591?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76591, 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.

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