CVE-2026-77945

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: LOW) published 2026-08-22. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 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 vulnerability was found in TRENDnet TEW-821DAP 2.2.01b05. Affected is an unknown function of the file /cgi-bin/upload.cgi of the component ssi. Performing a manipulation of the argument filename results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used.

CVSS v3
7.4
EG Score
7.4(high)
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
68%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Aug 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

WAVLINK-WN530H4-Command-Injection-in-set_add_routing/TEW-821DAP_ssi_Arbitrary_File_Command_Injection.md at main · dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing · GitHub

https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/TEW-821DAP_ssi_Arbitrary_File_Command_Injection.md

Vendor Advisories for CVE-2026-77945(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 33× in last 7d / 39× 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. 2026-08-30 02:43 UTCEG score recompute
  2. 2026-08-30 02:43 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 15:52 UTCGHSA enrichment
  5. 2026-08-29 04:59 UTCEG score recompute
  6. 2026-08-29 04:59 UTCGHSA enrichment
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-28 18:05 UTCGHSA enrichment
  9. 2026-08-28 06:39 UTCGHSA enrichment
  10. 2026-08-27 19:47 UTCEG score recompute
  11. 2026-08-27 19:47 UTCGHSA enrichment
  12. 2026-08-27 14:25 UTCEPSS rescore
  13. 2026-08-27 08:56 UTCGHSA enrichment
  14. 2026-08-26 22:04 UTCEG score recompute
  15. 2026-08-26 22:04 UTCGHSA enrichment
  16. 2026-08-26 14:47 UTCEPSS rescore
  17. 2026-08-26 11:10 UTCGHSA enrichment
  18. 2026-08-26 00:18 UTCEG score recompute
  19. 2026-08-26 00:18 UTCGHSA enrichment
  20. 2026-08-25 13:49 UTCEPSS rescore
  21. 2026-08-25 13:23 UTCEG score recompute
  22. 2026-08-25 13:22 UTCGHSA enrichment
  23. 2026-08-25 13:21 UTCNVD updateCVSS v4 → 2.1
  24. 2026-08-25 13:16 UTCEG score recompute
  25. 2026-08-25 13:16 UTCGHSA enrichment
Show 14 more
  1. 2026-08-25 13:15 UTCMITRE cvelistV5CVSS v4 → 5.3
  2. 2026-08-25 03:39 UTCGHSA enrichment
  3. 2026-08-24 16:47 UTCEG score recompute
  4. 2026-08-24 16:47 UTCGHSA enrichment
  5. 2026-08-24 14:18 UTCEPSS rescore
  6. 2026-08-24 06:44 UTCGHSA enrichment
  7. 2026-08-23 19:53 UTCGHSA enrichment
  8. 2026-08-23 09:01 UTCGHSA enrichment
  9. 2026-08-22 22:10 UTCEG score recompute
  10. 2026-08-22 22:10 UTCGHSA enrichment
  11. 2026-08-22 11:19 UTCEG score recompute
  12. 2026-08-22 11:18 UTCNVD updateCVSS v4 → 2.1
  13. 2026-08-22 10:56 UTCEG score recompute
  14. 2026-08-22 10:55 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-77945?
CVE-2026-77945 is a high vulnerability published on August 22, 2026. A vulnerability was found in TRENDnet TEW-821DAP 2.2.01b05. Affected is an unknown function of the file /cgi-bin/upload.cgi of the component ssi. Performing a manipulation of the argument filename results in command injection. The attack may be initiated remotely. The exploit has been made public…
When was CVE-2026-77945 disclosed?
CVE-2026-77945 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77945 actively exploited?
CVE-2026-77945 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 32.4% of all scored CVEs.
What is the CVSS score of CVE-2026-77945?
CVE-2026-77945 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-77945?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77945, 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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