CVE-2026-90693

D-Link DIR-878 WAN Settings SetWan3Settings stack-based overflow

Published Sep 14, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
A flaw has been found in D-Link DIR-878 120B05. This impacts the function SetWan3Settings of the component WAN Settings. This manipulation of the argument Primary/Secondary causes stack-based buffer overflow. Remote exploitation of the attack is possible.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A flaw has been found in D-Link DIR-878 120B05. This impacts the function SetWan3Settings of the component WAN Settings. This manipulation of the argument Primary/Secondary causes stack-based buffer overflow. Remote exploitation of the attack is possible.
Title D-Link DIR-878 WAN Settings SetWan3Settings stack-based overflow
First Time appeared D-link
D-link dir-878
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:h:d-link:dir-878:*:*:*:*:*:*:*:*
Vendors & Products D-link
D-link dir-878
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:UR'}

cvssV3_0

{'score': 9.9, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:R'}

cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:R'}

cvssV4_0

{'score': 9.4, 'vector': '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/E:X'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Sep 15, 2026, 3:59 PM
Reserved
Sep 13, 2026, 5:09 AM
Status
Deferred
Published
Sep 14, 2026, 8:16 AM
Modified
Sep 15, 2026, 5:17 PM