# CVE-2024-3912: ASUS Router - Upload arbitrary firmware

Status: published. Published: 2024-06-14. Updated: 2026-11-03.

Certain models of ASUS routers have an arbitrary firmware upload vulnerability. An unauthenticated remote attacker can exploit this vulnerability to execute arbitrary system commands on the device.

## Remediation

- fix: Update following models to version 1.1.2.3_792 or later：
DSL-N17U, DSL-N55U_C1, DSL-N55U_D1, DSL-N66U

Update following models to version 1.1.2.3_807 or later：
DSL-N12U_C1, DSL-N12U_D1, DSL-N14U, DSL-N14U_B1

Update following models to version 1.1.2.3_999 or later：
DSL-N16, DSL-AC51, DSL-AC750, DSL-AC52U, DSL-AC55U, DSL-AC56U

The following models are no longer maintained, and it is recommended to retire and replace them.
DSL-N10_C1, DSL-N10_D1, DSL-N10P_C1, DSL-N12E_C1, ,DSL-N16P, DSL-N16U, DSL-AC52, DSL-AC55


If replacement is not possible in the short term, it is recommended to disable remote access (Web access from WAN), virtual servers (Port forwarding), DDNS, VPN server, DMZ, and port trigger. (source: CNA: twcert)

## Affected products and versions

- ASUS / DSL-N17U: ≥ earlier; < 1.1.2.3_792 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N55U_C1: ≥ earlier; < 1.1.2.3_792 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N55U_D1: ≥ earlier; < 1.1.2.3_792 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N66U: ≥ earlier; < 1.1.2.3_792 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N12U_C1: ≥ earlier; < 1.1.2.3_807 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N12U_D1: ≥ earlier; < 1.1.2.3_807 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N14U: ≥ earlier; < 1.1.2.3_807 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N14U_B1: ≥ earlier; < 1.1.2.3_807 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N16: ≥ earlier; < 1.1.2.3_999 (affected, custom). Source: CNA: twcert
- ASUS / DSL-AC51: ≥ earlier; < 1.1.2.3_999 (affected, custom). Source: CNA: twcert
- ASUS / DSL-AC750: ≥ earlier; < 1.1.2.3_999 (affected, custom). Source: CNA: twcert
- ASUS / DSL-AC52U: ≥ earlier; < 1.1.2.3_999 (affected, custom). Source: CNA: twcert
- ASUS / DSL-AC55U: ≥ earlier; < 1.1.2.3_999 (affected, custom). Source: CNA: twcert
- ASUS / DSL-AC56U: ≥ earlier; < 1.1.2.3_999 (affected, custom). Source: CNA: twcert
- ASUS / DSL-N10_C1: All (affected). Source: CNA: twcert
- ASUS / DSL-N10_D1: All (affected). Source: CNA: twcert
- ASUS / DSL-N10P_C1: All (affected). Source: CNA: twcert
- ASUS / DSL-N12E_C1: All (affected). Source: CNA: twcert
- ASUS / DSL-N16P: All (affected). Source: CNA: twcert
- ASUS / DSL-N16U: All (affected). Source: CNA: twcert
- ASUS / DSL-AC52: All (affected). Source: CNA: twcert
- ASUS / DSL-AC55: All (affected). Source: CNA: twcert
- asus / dsl-n66u_firmware: ≥ 0; < 1.1.2.3_792 (affected, custom). Source: ADP: CISA-ADP
- asus / dsl-n12u_c1_firmware: ≥ 0; < 1.1.2.3_807 (affected, custom). Source: ADP: CISA-ADP
- asus / dsl-ac55_firmware: ≥ 0; < 1.1.2.3_999 (affected, custom). Source: ADP: CISA-ADP
- asus / dsl-n10_c1_firmware: ≥ 0; ≤ * (affected, custom). Source: ADP: CISA-ADP

## Severity and prioritization

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: twcert

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: twcert@cert.org.tw

- CISA KEV: No listing in collected sources

- EPSS: 1.02% as of 2026-11-03; percentile 63.53%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-434

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.twcert.org.tw/tw/cp-132-7875-872d3-1.html (CNA: twcert; third-party-advisory)

- https://www.twcert.org.tw/en/cp-139-7876-396bd-2.html (CNA: twcert; third-party-advisory)

- https://www.twcert.org.tw/tw/cp-132-7875-872d3-1.html (ADP: CVE; third-party-advisory, x_transferred)

- https://www.twcert.org.tw/en/cp-139-7876-396bd-2.html (ADP: CVE; third-party-advisory, x_transferred)

- https://www.twcert.org.tw/en/cp-139-7876-396bd-2.html (twcert@cert.org.tw)

- https://www.twcert.org.tw/tw/cp-132-7875-872d3-1.html (twcert@cert.org.tw)

- https://www.twcert.org.tw/en/cp-139-7876-396bd-2.html (af854a3a-2127-422b-91ae-364da2661108)

- https://www.twcert.org.tw/tw/cp-132-7875-872d3-1.html (af854a3a-2127-422b-91ae-364da2661108)

## Provenance

- CNA: twcert: https://www.cve.org/CVERecord?id=CVE-2024-3912; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-3912; retrieved 2026-11-04; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-3912; retrieved 2026-11-03; source updated Not reported

Revision: 6a2d540f981ed03abd57b3d6a62dca38edcdfa2557fe82404b347118eaeaa9a7

Canonical: https://y2.dev/cve/CVE-2024-3912

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