Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier…
Priority MEDIUM 41Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.
Why it matters now
EPSS 0.01705 77th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| D-Link Japan K.K. | DAP-1880AC | firmware version 1.21 and earlier | — | No fix listed | CNA |
- DAP-1880AC VendorD-Link Japan K.K. Affected firmware version 1.21 and earlier Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dap-1880ac_firmware:*:*:*:*:*:*:*:* | up to 1.21 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dap-1880ac:-:*:*:*:*:*:*:* | not specified by NVD | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dap-1880ac_firmware:*:*:*:*:*:*:*:* Versions up to 1.21 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dap-1880ac:-:*:*:*:*:*:*:* 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-2021-20694
- 2026-10-03 Alias added: GHSA-q6x9-wmf8-g847
References
More D-Link Japan K.K. Dap-1880ac Firmware vulnerabilities
- TI-2021-03923 Missing authentication in D-Link Japan K.K. DAP-1880AC CVSS 3.1CRITICAL 9.8
- TI-2021-03922 OS command injection in D-Link Japan K.K. DAP-1880AC CVSS 3.1HIGH 8.8
- TI-2021-03921 Improper certificate validation in D-Link Japan K.K. DAP-1880AC CVSS 3.1HIGH 8.8
Sources
- CVE-2021-20694 · CVE Program
- CVE-2021-20694 · NVD
- FIRST EPSS
- GHSA-q6x9-wmf8-g847 · 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