CVE-2026-71922

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Multiple DrayTek VigorSwitch models contain a pre-authentication null pointer dereference vulnerability in the setget.cgi interface. The vulnerability is caused by missing validation when the pass field is absent. A remote attacker can trigger this vulnerability via a crafted request to crash the service and cause a denial of service.

CVSS v3
7.5
EG Score
7.5(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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic

DrayTek VigorSwitch Multiple Models Pre-Authentication NULL Pointer Dereference via setget.cgi | Advisories | VulnCheck

https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-pre-authentication-null-pointer-dereference-via-setget-cgi
generic

Multiple Vulnerabilities in VigorSwitch Series | DrayTek

https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/

Vendor Advisories for CVE-2026-71922(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 27× in last 7d / 27× 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 05:13 UTCEG score recompute
  2. 2026-08-30 05:13 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 17:33 UTCGHSA enrichment
  5. 2026-08-29 05:28 UTCEG score recompute
  6. 2026-08-29 05:27 UTCGHSA enrichment
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-28 17:48 UTCGHSA enrichment
  9. 2026-08-28 05:54 UTCGHSA enrichment
  10. 2026-08-27 18:14 UTCEG score recompute
  11. 2026-08-27 18:14 UTCGHSA enrichment
  12. 2026-08-27 05:04 UTCGHSA enrichment
  13. 2026-08-26 17:24 UTCEG score recompute
  14. 2026-08-26 17:24 UTCGHSA enrichment
  15. 2026-08-26 14:47 UTCEPSS rescore
  16. 2026-08-26 06:24 UTCGHSA enrichment
  17. 2026-08-25 18:42 UTCEG score recompute
  18. 2026-08-25 18:42 UTCGHSA enrichment
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-25 07:04 UTCGHSA enrichment
  21. 2026-08-24 19:25 UTCEG score recompute
  22. 2026-08-24 19:25 UTCGHSA enrichment
  23. 2026-08-24 19:07 UTCEG score recompute
  24. 2026-08-24 19:07 UTCGHSA enrichment
  25. 2026-08-24 18:22 UTCEG score recompute
Show 2 more
  1. 2026-08-24 17:21 UTCEG score recompute
  2. 2026-08-24 17:21 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71922?
CVE-2026-71922 is a high vulnerability published on August 24, 2026. Multiple DrayTek VigorSwitch models contain a pre-authentication null pointer dereference vulnerability in the setget.cgi interface. The vulnerability is caused by missing validation when the pass field is absent. A remote attacker can trigger this vulnerability via a crafted request to crash the…
When was CVE-2026-71922 disclosed?
CVE-2026-71922 was first published in the National Vulnerability Database on August 24, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71922 actively exploited?
CVE-2026-71922 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 61.4% of all scored CVEs.
What is the CVSS score of CVE-2026-71922?
CVE-2026-71922 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-71922?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71922, 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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