CVE-2026-77031

HIGHPre-NVD 7.47.4
EchelonGraph scoreLOW confidence

This high-severity CVE scores 7.4 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: cna:vuldb
Trending — 4 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.4Exploit: None knownExposed: 0

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

A vulnerability has been found in Tenda CH22 1.0.0.1. The affected element is the function formcreateFileName of the file /goform/formcreateFileName. The manipulation of the argument fileNameMit leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS v3
7.4
EG Score
7.4(low)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

August 20, 2026

Last Modified

August 20, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

腾达(Tenda) 官方网站

https://www.tenda.com.cn/
generic

Notion

https://candle-throne-f75.notion.site/Tenda-CH22-formcreateFileName-392df0aa118580c38c4ad15fb15cd30d

Vendor Advisories for CVE-2026-77031(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 10× in last 7d / 10× 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. 2026-08-20 19:18 UTCEG score recompute
  2. 2026-08-20 19:18 UTCGHSA enrichment
  3. 2026-08-20 19:17 UTCNVD updateCVSS v4 → 2.1
  4. 2026-08-20 18:32 UTCEG score recompute
  5. 2026-08-20 18:32 UTCGHSA enrichment
  6. 2026-08-20 18:31 UTCMITRE cvelistV5CVSS v4 → 5.3
  7. 2026-08-20 18:17 UTCEG score recompute
  8. 2026-08-20 18:17 UTCNVD updateCVSS v4 → 2.1
  9. 2026-08-20 17:32 UTCEG score recompute
  10. 2026-08-20 17:31 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-77031?
CVE-2026-77031 is a high vulnerability published on August 20, 2026. A vulnerability has been found in Tenda CH22 1.0.0.1. The affected element is the function formcreateFileName of the file /goform/formcreateFileName. The manipulation of the argument fileNameMit leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the…
When was CVE-2026-77031 disclosed?
CVE-2026-77031 was first published in the National Vulnerability Database on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-77031?
CVE-2026-77031 has a CVSS v4.0 base score of 7.4 (CNA self-assessment; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-77031?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77031, 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-2026-77031

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