CVE-2024-3912

ASUS Router - Upload arbitrary firmware

publishedCWE-434

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.

Technical severity9.8 criticalCVSS 3.1 · CNA: twcert

Published2024-06-14Source updated 2026-11-03

Collected2026-11-032 attributed sources

Fixes and workarounds

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to version 1.1.2.3_999 or later： DSL-N16, DSL-AC51, DSL-AC750, DSL-AC52U, DSL-AC55U, DSL-AC56U The following models are no longer maintained, and it is recommended to retire and replace them.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

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
DSL-N17U ASUS	≥ earlier; < 1.1.2.3_792 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N55U_C1 ASUS	≥ earlier; < 1.1.2.3_792 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N55U_D1 ASUS	≥ earlier; < 1.1.2.3_792 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N66U ASUS	≥ earlier; < 1.1.2.3_792 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N12U_C1 ASUS	≥ earlier; < 1.1.2.3_807 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N12U_D1 ASUS	≥ earlier; < 1.1.2.3_807 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N14U ASUS	≥ earlier; < 1.1.2.3_807 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N14U_B1 ASUS	≥ earlier; < 1.1.2.3_807 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N16 ASUS	≥ earlier; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-AC51 ASUS	≥ earlier; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-AC750 ASUS	≥ earlier; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-AC52U ASUS	≥ earlier; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-AC55U ASUS	≥ earlier; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-AC56U ASUS	≥ earlier; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	CNA: twcert
DSL-N10_C1 ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-N10_D1 ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-N10P_C1 ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-N12E_C1 ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-N16P ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-N16U ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-AC52 ASUS	All (affected) Other versions: unaffected	CNA: twcert
DSL-AC55 ASUS	All (affected) Other versions: unaffected	CNA: twcert
dsl-n66u_firmware asus	≥ 0; < 1.1.2.3_792 (affected, custom) Other versions: unaffected	ADP: CISA-ADP
dsl-n12u_c1_firmware asus	≥ 0; < 1.1.2.3_807 (affected, custom) Other versions: unaffected	ADP: CISA-ADP
dsl-ac55_firmware asus	≥ 0; < 1.1.2.3_999 (affected, custom) Other versions: unaffected	ADP: CISA-ADP
dsl-n10_c1_firmware asus	≥ 0; ≤ * (affected, custom) Other versions: unknown	ADP: CISA-ADP

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 9.8 critical	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	CNA: twcert

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.htmlCNA: twcert · third-party-advisory
https://www.twcert.org.tw/en/cp-139-7876-396bd-2.htmlCNA: twcert · third-party-advisory
https://www.twcert.org.tw/tw/cp-132-7875-872d3-1.htmlADP: CVE · third-party-advisory, x_transferred
https://www.twcert.org.tw/en/cp-139-7876-396bd-2.htmlADP: CVE · third-party-advisory, x_transferred

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