CVE-2026-90680

9.4 criticalEPSS 0.9%

Critical (9.4). EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.4 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS 3.1

9.9 critical

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWEs: CWE-119, CWE-121
Published: 2026-09-14
Modified: 2026-09-16
Record from: the NVD, synced 2026-10-19

References

https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/d-link/dir-823g/SetStaticRouteSettings/README.md
https://vuldb.com/cve/CVE-2026-90680
https://vuldb.com/submit/914902
https://vuldb.com/vuln/403213
https://vuldb.com/vuln/403213/cti

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