A command injection vulnerability has been found on D-Link DIR-823G devices with firmware…
Priority HIGH 82CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.
Summary
A command injection vulnerability has been found on D-Link DIR-823G devices with firmware version 1.02B03 that allows an attacker to execute arbitrary operating system commands through well-designed /HNAP1 requests. Before the HNAP API function can process the request, the system function executes an untrusted command that triggers the vulnerability.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.03867 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-823g_firmware:1.02b03:*:*:*:*:*:*:* | 1.02b03 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-823g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-823g_firmware:1.02b03:*:*:*:*:*:*:* Versions 1.02b03 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-823g:-:*:*:*:*:*:*:* Versions not specified by NVD 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-2022-44808
- 2026-10-03 Alias added: GHSA-qvj8-qcrx-49c6
- 2026-10-19 EPSS moved to the 90th–95th percentile
- 2026-10-25 EPSS moved to the 50th–90th percentile
- 2026-10-28 EPSS moved to the 90th–95th percentile
References
More D-Link Japan K.K. Dir-823g Firmware vulnerabilities
- TI-2023-23153 D-Link DIR-823G v1.0.2B05 was discovered to contain a stack overflow via parameter… CVSS 3.1CRITICAL 9.8
- TI-2023-23147 D-Link DIR-823G v1.0.2B05 was discovered to contain a stack overflow via parameter… CVSS 3.1CRITICAL 9.8
- TI-2023-13961 D-Link DIR823G_V1.0.2B05 was discovered to contain a stack overflow via the NewPassword parameters in SetPasswdSettings. CVSS 3.1CRITICAL 9.8
- TI-2023-11745 D-Link DIR-823G firmware version 1.02B05 has a buffer overflow vulnerability, which… CVSS 3.1CRITICAL 9.8
- TI-2023-11743 An OS command injection vulnerability in D-Link DIR-823G firmware version 1.02B05 allows… CVSS 3.1CRITICAL 9.8
- TI-2023-11742 D-Link DIR-823G firmware version 1.02B05 has a buffer overflow vulnerability, which… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-44808 · CVE Program
- CVE-2022-44808 · NVD
- FIRST EPSS
- GHSA-qvj8-qcrx-49c6 · GitHub Advisory Database · CC BY 4.0
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