HOMEVULNERABILITIESCVE-2021-41503
HIGH

CVE-2021-41503

CWE-287Published: September 24, 2021· Updated: Jun 17, 2026

8.0
CVSS v3.1

Official Description

DCS-5000L v1.05 and DCS-932L v2.17 and older are affecged by Incorrect Acess Control. The use of the basic authentication for the devices command interface allows attack vectors that may compromise the cameras configuration and allow malicious users on the LAN to access the device. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

NVD Source

Technical Analysis

CVE-2021-41503 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.0.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

d-link1 product(s)
dcs-5000l firmware
dlink3 product(s)
dcs-932l firmwaredcs-932ldcs-5000l
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2021-41503
CVSS Score8.0 / 10
SeverityHIGH
WeaknessCWE-287
CISA KEVNo
Affected2 vendor(s)
PublishedSep 24, 2021

Related CVEs (CWE-287)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-41503 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.