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CVE-2016-6563

D-Link DIR routers contain a stack-based buffer overflow in the HNAP Login action

Critical9.8EPSS 79.7%
Published
Updated
Reserved
Assigned by
certcc

Description

Processing malformed SOAP messages when performing the HNAP Login action causes a buffer overflow in the stack in some D-Link DIR routers. The vulnerable XML fields within the SOAP body are: Action, Username, LoginPassword, and Captcha. The following products are affected: DIR-823, DIR-822, DIR-818L(W), DIR-895L, DIR-890L, DIR-885L, DIR-880L, DIR-868L, and DIR-850L.

Scores

CVSS scores of CVE-2016-6563, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Critical9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
79.7% · top 0.4% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

  • D-Link · DIR-823

    • unknown N/A

  • D-Link · DIR-822

    • unknown N/A

  • D-Link · DIR-818L(W)

    • unknown N/A

  • D-Link · DIR-895L

    • unknown N/A

  • D-Link · DIR-890L

    • unknown N/A

  • D-Link · DIR-885L

    • unknown N/A

  • D-Link · DIR-880L

    • unknown N/A

  • D-Link · DIR-868L

    • unknown N/A

  • D-Link · DIR-850L

    • unknown N/A

References (4)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .