THREATPORT/VULNERABILITY/CVE-2025-1103
MEDIUM SEVERITY

CVE-2025-1103

Dir 823x Firmware vulnerability

CVSS
6.5
EPSS
13.0%
EPSS pct
96th
Exploited
No known
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.
Affected vendor
Dlink
Affected product
Dir 823x Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-404 — Improper Resource Shutdown or Release
  • CWE-476 — NULL Pointer Dereference
Published
2025-02-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 13.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2025-1103

  • Confirm whether Dlink Dir 823x Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-1103.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-1103

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