CVE-2026-90680

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-14. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.9Exploit: None knownExposed: 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 D-Link DIR-823G 1.0.2B05_20181207. The impacted element is the function strcpy of the file /HNAP1/SetStaticRouteSettings of the component HNAP1. The manipulation of the argument PAddress/SubnetMask/Gateway results in stack-based buffer overflow. The attack can be launched remotely.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Smart Home, SMB and Enterprise solutions | D-Link

https://www.dlink.com/
generic

router-vulnerability-research/advisories/d-link/dir-823g/SetStaticRouteSettings/README.md at main · Amalll-Sec/router-vulnerability-research · GitHub

https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/d-link/dir-823g/SetStaticRouteSettings/README.md

Vendor Advisories for CVE-2026-90680(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 53× in last 7d / 53× 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. 2026-09-20 01:56 UTCGHSA enrichment
  2. 2026-09-19 21:53 UTCGHSA enrichment
  3. 2026-09-19 17:49 UTCEG score recompute
  4. 2026-09-19 17:49 UTCGHSA enrichment
  5. 2026-09-19 13:46 UTCGHSA enrichment
  6. 2026-09-19 09:43 UTCGHSA enrichment
  7. 2026-09-19 05:23 UTCGHSA enrichment
  8. 2026-09-19 01:19 UTCGHSA enrichment
  9. 2026-09-18 21:16 UTCEG score recompute
  10. 2026-09-18 21:16 UTCGHSA enrichment
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 16:18 UTCGHSA enrichment
  13. 2026-09-18 12:15 UTCGHSA enrichment
  14. 2026-09-18 08:12 UTCGHSA enrichment
  15. 2026-09-18 04:09 UTCGHSA enrichment
  16. 2026-09-18 00:06 UTCGHSA enrichment
  17. 2026-09-17 20:03 UTCEG score recompute
  18. 2026-09-17 20:03 UTCGHSA enrichment
  19. 2026-09-17 19:32 UTCEPSS rescore
  20. 2026-09-17 15:54 UTCGHSA enrichment
  21. 2026-09-17 11:51 UTCGHSA enrichment
  22. 2026-09-17 07:48 UTCGHSA enrichment
  23. 2026-09-17 03:44 UTCGHSA enrichment
  24. 2026-09-16 23:41 UTCGHSA enrichment
  25. 2026-09-16 19:37 UTCGHSA enrichment
Show 28 more
  1. 2026-09-16 15:29 UTCEG score recompute
  2. 2026-09-16 15:29 UTCGHSA enrichment
  3. 2026-09-16 14:52 UTCEG score recompute
  4. 2026-09-16 14:52 UTCGHSA enrichment
  5. 2026-09-16 14:09 UTCEPSS rescore
  6. 2026-09-16 13:49 UTCGHSA enrichment
  7. 2026-09-16 09:38 UTCGHSA enrichment
  8. 2026-09-16 05:34 UTCEG score recompute
  9. 2026-09-16 05:34 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 01:31 UTCGHSA enrichment
  12. 2026-09-15 21:28 UTCGHSA enrichment
  13. 2026-09-15 17:24 UTCGHSA enrichment
  14. 2026-09-15 13:21 UTCGHSA enrichment
  15. 2026-09-15 09:18 UTCGHSA enrichment
  16. 2026-09-15 05:14 UTCEG score recompute
  17. 2026-09-15 05:14 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 01:08 UTCGHSA enrichment
  20. 2026-09-14 21:05 UTCGHSA enrichment
  21. 2026-09-14 20:30 UTCGHSA enrichment
  22. 2026-09-14 16:27 UTCGHSA enrichment
  23. 2026-09-14 12:23 UTCGHSA enrichment
  24. 2026-09-14 08:20 UTCEG score recompute
  25. 2026-09-14 08:20 UTCGHSA enrichment
  26. 2026-09-14 04:17 UTCEG score recompute
  27. 2026-09-14 04:05 UTCEG score recompute
  28. 2026-09-14 04:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90680?
CVE-2026-90680 is a critical vulnerability published on September 14, 2026. A security flaw has been discovered in D-Link DIR-823G 1.0.2B05_20181207. The impacted element is the function strcpy of the file /HNAP1/SetStaticRouteSettings of the component HNAP1. The manipulation of the argument PAddress/SubnetMask/Gateway results in stack-based buffer overflow. The attack can…
When was CVE-2026-90680 disclosed?
CVE-2026-90680 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90680 actively exploited?
CVE-2026-90680 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 57.5% of all scored CVEs.
What is the CVSS score of CVE-2026-90680?
CVE-2026-90680 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-90680?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90680, 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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