How severe is CVE-2021-41503?

CVE-2021-41503 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-41503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41503?

CVE-2021-41503 primarily affects Dlink Dcs-932l Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-41503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-41503 published?

CVE-2021-41503 was published on 2021-09-24 and last updated on 2026-06-17.

CVE-2021-41503

CVE-2021-41503 is a high-severity vulnerability in Dlink Dcs-932l Firmware with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 5.2
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Dlink Dcs-932l Firmware
Published: 2021-09-24
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2021-41503?: 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
How severe is CVE-2021-41503?: CVE-2021-41503 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-41503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41503?: CVE-2021-41503 primarily affects Dlink Dcs-932l Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-41503 published?: CVE-2021-41503 was published on 2021-09-24 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:dlink:dcs-932l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dcs-5000l_firmware:1.05:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dcs-932l Firmware

CVE-2025-5572 — High (CVSS 8.8): A vulnerability was found in D-Link DCS-932L 2.18.01. It has been declared as critical. Affected by this vulnerability…
CVE-2025-4843 — High (CVSS 8.8): A vulnerability was found in D-Link DCS-932L 2.18.01. It has been classified as critical. This affects the function…
CVE-2025-4842 — High (CVSS 8.8): A vulnerability was found in D-Link DCS-932L 2.18.01. It has been declared as critical. This vulnerability affects the…
CVE-2025-4841 — High (CVSS 8.8): A vulnerability was found in D-Link DCS-932L 2.18.01 and classified as critical. Affected by this issue is the function…
CVE-2019-10999 — High (CVSS 8.8): The D-Link DCS series of Wi-Fi cameras contains a stack-based buffer overflow in alphapd, the camera's web server. The…
CVE-2017-7852 — High (CVSS 8.8): D-Link DCS cameras have a weak/insecure CrossDomain.XML file that allows sites hosting malicious Flash objects to…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →