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VulnerabilityPublished Updated

CVE-2024-3912: ASUS DSL-N17U · Unrestricted File Upload

Affects ASUS DSL-N17USource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical : upgrade to 1.1.2.3_792 as a priority.

Data as of 4 Nov 2026, 00:28 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (twcert)CVSS 3.19.8
EPSS
1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2024-06-28.

Patch
Available – fixed in 1.1.2.3_792, 1.1.2.3_807, 1.1.2.3_999
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jun 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

What to do

Upgrade DSL-N17U and DSL-N55U_C1 and DSL-N55U_D1 and DSL-N66U to 1.1.2.3_792; DSL-N12U_C1 and DSL-N12U_D1 and DSL-N14U and DSL-N14U_B1 to 1.1.2.3_807; DSL-N16 and DSL-AC51 and DSL-AC750 and DSL-AC52U and DSL-AC55U and DSL-AC56U to 1.1.2.3_999.

Affected software

ProductAffectedFixed in
ASUSDSL-N17UAffected
  • ≥ earlier, < 1.1.2.3_792
Fixed in
  • 1.1.2.3_792
ASUSDSL-N55U_C1Affected
  • ≥ earlier, < 1.1.2.3_792
Fixed in
  • 1.1.2.3_792
ASUSDSL-N55U_D1Affected
  • ≥ earlier, < 1.1.2.3_792
Fixed in
  • 1.1.2.3_792
ASUSDSL-N66UAffected
  • ≥ earlier, < 1.1.2.3_792
Fixed in
  • 1.1.2.3_792
ASUSDSL-N12U_C1Affected
  • ≥ earlier, < 1.1.2.3_807
Fixed in
  • 1.1.2.3_807
ASUSDSL-N12U_D1Affected
  • ≥ earlier, < 1.1.2.3_807
Fixed in
  • 1.1.2.3_807

AI-suggested

Apply the official firmware updates provided by ASUS to versions 1.1.2.3_792, 1.1.2.3_807, or 1.1.2.3_999 to remediate this vulnerability. No other mitigation steps are indicated as the fix is available.

Description

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.

References

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