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Vulnerabilities

Vulnerability · CVE-2016-5681

D-Link dir-868l_firmware Improper Restriction of Operations within the Bounds of a Memory Buffer

Published Jun 17, 2026 · catalog updated Jun 17, 2026 · D-Link

Patch now

CVE-2016-5681 is in the CISA known-exploited catalog. Confirm D-Link against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
11.93%
Remediation
Remediation guidance
Affected products
vendor D-Link dir-868l_firmware

Stack-based buffer overflow in dws/api/Login on D-Link DIR-850L B1 2.07 before 2.07WWB05, DIR-817 Ax, DIR-818LW Bx before 2.05b03beta03, DIR-822 C1 3.01 before 3.01WWb02, DIR-823 A1 1.00 before 1.00WWb05, DIR-895L A1 1.11 before 1.11WWb04, DIR-890L A1 1.09 before 1.09b14, DIR-885L A1 1.11 before 1.11WWb07, DIR-880L A1 1.07 before 1.07WWb08, DIR-868L B1 2.03 before 2.03WWb01, and DIR-868L C1 3.00 before 3.00WWb01 devices allows remote attackers to execute arbitrary code via a long session cookie.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor D-Link dir-868l_firmwareversion unspecified

How to fix CVE-2016-5681

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2016-5681 is in the CISA known-exploited catalog. Confirm D-Link against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 11.93%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 17, 2026 · VulnCheck KEV

    Detected

    Stack-based buffer overflow in dws/api/Login on D-Link DIR-850L B1 2.07 before 2.07WWB05, DIR-817 Ax, DIR-818LW Bx before 2.05b03beta03, DIR-822 C1 3.01 before 3.01WWb02, DIR-823 A1 1.00 before 1.00WWb05, DIR-895L A1 1.11 before 1.11WWb04, DIR-890L A1 1.09 before 1.09b14, DIR-885L A1 1.11 before 1.11WWb07, DIR-880L A1 1.07 before 1.07WWb08, DIR-868L B1 2.03 before 2.03WWb01, and DIR-868L C1 3.00 b

  2. Jun 17, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2016-5681

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2016-5681

    30-day exploitation probability 11.9%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2016-5681

    Stack-based buffer overflow in dws/api/Login on D-Link DIR-850L B1 2.07 before 2.07WWB05, DIR-817 Ax, DIR-818LW Bx before 2.05b03beta03, DIR-822 C1 3.01 before 3.01WWb02, DIR-823 A1 1.00 before 1.00WWb05, DIR-895L A1 1.11 before 1.11WWb04, DIR-890L A1 1.09 before 1.09b14, DIR-885

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.