D-Link DIR-823X FUN_00412244 null pointer dereference
Priority HIGH 79CWE-404Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.
Summary
A vulnerability has been found in D-Link DIR-823X 240126/240802 and classified as critical. Affected by this vulnerability is the function FUN_00412244. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01995 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| D-Link | DIR-823X | 240126; 240802 | — | No fix listed | CNA |
- DIR-823X VendorD-Link Affected 240126; 240802 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-823x_firmware:240126:*:*:*:*:*:*:* | 240126 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-823x_firmware:240802:*:*:*:*:*:*:* | 240802 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-823x:*:*:*:*:*:*:*:* | all versions | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-823x_firmware:240126:*:*:*:*:*:*:* Versions 240126 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-823x_firmware:240802:*:*:*:*:*:*:* Versions 240802 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-823x:*:*:*:*:*:*:*:* Versions all versions Running on ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-0492
- 2026-10-03 Alias added: GHSA-2gx4-fph4-hgjx
References
More D-Link vulnerabilities
- TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
- TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
- TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
- TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-0492 · CVE Program
- CVE-2025-0492 · NVD
- FIRST EPSS
- GHSA-2gx4-fph4-hgjx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences