The DHCP client on D-Link DIR-850L REV.
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
The DHCP client on D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices allows unauthenticated remote code execution as root because /etc/services/INET/inet_ipv4.php mishandles shell metacharacters, affecting generated files such as WAN-1-udhcpc.sh.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.04923 92nd 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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* | before fw114wwb07_h2ab | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-850l_firmware:fw114wwb07_h2ab:beta1:*:*:*:*:*:* | fw114wwb07_h2ab beta1 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-850l:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
| cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* | up to fw208wwb02 | Vulnerable | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* Versions before fw114wwb07_h2ab Vulnerable ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-850l_firmware:fw114wwb07_h2ab:beta1:*:*:*:*:*:* Versions fw114wwb07_h2ab beta1 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-850l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.
- cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:* Versions up to fw208wwb02 Vulnerable ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-14429
- 2026-10-03 Alias added: GHSA-5gw4-h372-4w6q
References
More D-Link Japan K.K. Dir-850l Firmware vulnerabilities
- TI-2016-05627 D-Link DIR routers contain a stack-based buffer overflow in the HNAP Login action CVSS 3.0CRITICAL 9.8
- TI-2018-06551 An authentication bypass vulnerability on D-Link DIR-850L Wireless AC1200 Dual Band… CVSS 3.1CRITICAL 9.8
- TI-2021-21203 DLink DIR850 ET850-1.08TRb03 is affected by an incorrect access control vulnerability… CVSS 3.1HIGH 7.5
- TI-2017-02398 Stack-based buffer overflow in D-Link DIR-850L and potentially others CVSS 3.1HIGH 8.8
- TI-2023-26714 An issue in D-Link DIR-850L v.B1_FW223WWb01 allows a remote attacker to execute arbitrary… CVSS 3.1CRITICAL 9.8
- TI-2018-14680 D-Link DIR-822 C1 before v3.11B01Beta, DIR-822-US C1 before v3.11B01Beta, DIR-850L A*… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2017-14429 · CVE Program
- CVE-2017-14429 · NVD
- FIRST EPSS
- GHSA-5gw4-h372-4w6q · 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