Authentication bypass in ASUS DSL-AC51
Priority MEDIUM 50CWE-288Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-288.
Summary
An authentication bypass vulnerability has been identified in certain DSL series routers, may allow remote attackers to gain unauthorized access into the affected system. Refer to the 'Security Update for DSL Series Router' section on the ASUS Security Advisory for more information.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00855 58th percentileScored 2026-11-07
Fix Fixed DSL-AC51 (ASUS): 1.1.2.3_1010DSL-N16 (ASUS): 1.1.2.3_1010+1 more product
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| ASUS | DSL-AC51 | before 1.1.2.3_1010 | 1.1.2.3_1010 | Patch available | CNA |
| ASUS | DSL-N16 | before 1.1.2.3_1010 | 1.1.2.3_1010 | Patch available | CNA |
| ASUS | DSL-AC750 | before 1.1.2.3_1010 | 1.1.2.3_1010 | Patch available | CNA |
- DSL-AC51 VendorASUS Affected before 1.1.2.3_1010 Fixed in 1.1.2.3_1010 Patch available CNA
- DSL-N16 VendorASUS Affected before 1.1.2.3_1010 Fixed in 1.1.2.3_1010 Patch available CNA
- DSL-AC750 VendorASUS Affected before 1.1.2.3_1010 Fixed in 1.1.2.3_1010 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:asus:dsl-ac51_firmware:*:*:*:*:*:*:*:* | before 1.1.2.3_1010 | Vulnerable | ASUS |
| cpe:2.3:h:asus:dsl-ac51:-:*:*:*:*:*:*:* | not specified by NVD | Running on | ASUS |
| cpe:2.3:o:asus:dsl-n16_firmware:*:*:*:*:*:*:*:* | before 1.1.2.3_1010 | Vulnerable | ASUS |
| cpe:2.3:h:asus:dsl-n16:-:*:*:*:*:*:*:* | not specified by NVD | Running on | ASUS |
| cpe:2.3:o:asus:dsl-ac750_firmware:*:*:*:*:*:*:*:* | before 1.1.2.3_1010 | Vulnerable | ASUS |
| cpe:2.3:h:asus:dsl-ac750:-:*:*:*:*:*:*:* | not specified by NVD | Running on | ASUS |
- cpe:2.3:o:asus:dsl-ac51_firmware:*:*:*:*:*:*:*:* Versions before 1.1.2.3_1010 Vulnerable ·ASUS
- cpe:2.3:h:asus:dsl-ac51:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
- cpe:2.3:o:asus:dsl-n16_firmware:*:*:*:*:*:*:*:* Versions before 1.1.2.3_1010 Vulnerable ·ASUS
- cpe:2.3:h:asus:dsl-n16:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
- cpe:2.3:o:asus:dsl-ac750_firmware:*:*:*:*:*:*:*:* Versions before 1.1.2.3_1010 Vulnerable ·ASUS
- cpe:2.3:h:asus:dsl-ac750:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
Remediation
- Fix · CNA DSL-AC51 (ASUS) Fixed in 1.1.2.3_1010
- Fix · CNA DSL-N16 (ASUS) Fixed in 1.1.2.3_1010
- Fix · CNA DSL-AC750 (ASUS) Fixed in 1.1.2.3_1010
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59367
- 2026-10-03 Alias added: GHSA-fp9m-phr9-853c
References
Advisory 1
More ASUS Dsl-ac51 Firmware vulnerabilities
- TI-2017-10767 ASUS DSL-AC51, DSL-AC52U, DSL-AC55U, DSL-N55U C1, DSL-N55U D1, DSL-AC56U, DSL-N10_C1… CVSS 3.0CRITICAL 9.8
- TI-2017-10768 Multiple XML external entity (XXE) vulnerabilities in the AiCloud feature on ASUS… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2025-59367 · CVE Program
- CVE-2025-59367 · NVD
- FIRST EPSS
- GHSA-fp9m-phr9-853c · 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