NULL pointer dereference in D-Link Dir-823x
CVE-2025-1103
A vulnerability, which was classified as problematic, was found in D-Link DIR-823X 240126/240802. This affects the function set_wifi_blacklists of the file /goform/set_wifi_blacklists of the component HTTP POST Request Handler. The manipulation of the argument macList leads to null pointer dereference. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
EPSS: 0.130 (95.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- D-link Dir-823x — versions 240126, 240802
- Dlink Dir-823x
- Dlink Dir-823x_firmware — versions 240126, 240802
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry, Third Party Advisory)
- cna@vuldb.com (Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-1103?
- CVE-2025-1103 is a medium-severity vulnerability in D-Link Dir-823x, classified under Improper Resource Shutdown or Release. CVSS score: 6.5/10. Published 2025-02-07.
- How severe is CVE-2025-1103?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-1103 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.