CVE-2026-90680Network attack vectorHinoki check available

Unspecified impact via unchecked static-route copy

Published Sep 14, 2026 · Updated Sep 14, 2026

Stack-based buffer overflow in D-Link DIR-823G 1.0.2B05_20181207 allows remote attackers to cause unspecified impact via HNAP1 requests. SetStaticRouteSettings passes attacker-controlled PAddress, SubnetMask, or Gateway data to strcpy without bounding the destination stack buffer. The endpoint is remotely reachable, but public sources do not establish whether authentication is required or bound the resulting impact.

CVSS severityUnavailable
Unscored
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stack-based buffer overflow in D-Link DIR-823G 1.0.2B05_20181207 allows remote attackers to cause unspecified impact via HNAP1 requests. SetStaticRouteSettings passes attacker-controlled PAddress, SubnetMask, or Gateway data to strcpy without bounding the destination stack buffer. The endpoint is remotely reachable, but public sources do not establish whether authentication is required or bound the resulting impact.

The record

CVE
CVE-2026-90680
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
D-Link
Product
DIR-823G
Classifications
Unavailable
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.2B05_20181207

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

D-Link · DIR-823Gversion=1.0.2B05_20181207

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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