CVE-2023-35086

criticalpriority · track · 23EPSS 0.385 · 99 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

38.5% (99th) EPSS

CVSS 9.8 · critical

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

It is identified a format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U. This vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service. This issue affects RT-AX56U V2: 3.0.0.4.386_50460; RT-AC86U: 3.0.0.4_386_51529.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.2–9.8

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · twcert@cert.org.twexploitability 1.2 · impact 5.9

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-134USCWE-134US

exploits (1)

Public proof-of-concept and weaponised exploit code.

tin-z/CVE-2023-35086-POCPOC of CVE-2023-35086 only DoSPoC · poc_in_github

affected products (6)

Products and version ranges known to be affected.

ASUS RT-AC86U≤ 3.0.0.4_386_51529enisa_euvdEU
ASUS RT-AX56U V2≤ 3.0.0.4.386_50460enisa_euvdEU
ASUSTeK Computer Inc. RT-AC86U≤ 3.0.0.4.386_51915fstec_bduRU
ASUSTeK Computer Inc. RT-AX56U≤ 3.0.0.4_386_51598fstec_bduRU
asus rt-ac86u firmware= 3.0.0.4_386_51529nvdUScpe:2.3:o:asus:rt-ac86u_firmware:*:*:*:*:*:*:*:*
asus rt-ax56u v2 firmware= 3.0.0.4.386_50460nvdUScpe:2.3:o:asus:rt-ax56u_v2_firmware:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2023-07-21modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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