CVE-2021-41436

highEPSS 0.050 · 92 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.95% (92nd) EPSS

CVSS 7.8 · high

Is it mine?

19 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-18

An HTTP request smuggling in web application in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-AX56U_V2, RT-AX58U, RT-AX82U, RT-AX82U GUNDAM EDITION, RT-AX86 Series(RT-AX86U/RT-AX86S), RT-AX86U ZAKU II EDITION, RT-AX88U, RT-AX92U, TUF Gaming AX3000, TUF Gaming AX5400 (TUF-AX5400), ASUS ZenWiFi XD6, ASUS ZenWiFi AX (XT8) before 3.0.0.4.386.45898, and RT-AX68U before 3.0.0.4.386.45911, allows a remote unauthenticated attacker to DoS via sending a specially crafted HTTP packet.

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-444USprimary

affected products (19)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
asus gt-ax11000 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:gt-ax11000_firmware:*:*:*:*:*:*:*:*
asus rt-ax3000 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax3000_firmware:*:*:*:*:*:*:*:*
asus rt-ax55 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax55_firmware:*:*:*:*:*:*:*:*
asus rt-ax56u firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax56u_firmware:*:*:*:*:*:*:*:*
asus rt-ax56u v2 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax56u_v2_firmware:*:*:*:*:*:*:*:*
asus rt-ax58u firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax58u_firmware:*:*:*:*:*:*:*:*
asus rt-ax68u firmware< 3.0.0.4.386.45911nvdUScpe:2.3:o:asus:rt-ax68u_firmware:*:*:*:*:*:*:*:*
asus rt-ax82u firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax82u_firmware:*:*:*:*:*:*:*:*
asus rt-ax82u gundam edition firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax82u_gundam_edition_firmware:*:*:*:*:*:*:*:*
asus rt-ax86s firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax86s_firmware:*:*:*:*:*:*:*:*
asus rt-ax86u firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax86u_firmware:*:*:*:*:*:*:*:*
asus rt-ax86u zaku ii edition firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax86u_zaku_ii_edition_firmware:*:*:*:*:*:*:*:*
asus rt-ax88u firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax88u_firmware:*:*:*:*:*:*:*:*
asus rt-ax92u firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:rt-ax92u_firmware:*:*:*:*:*:*:*:*
asus tuf gaming ax3000 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:tuf_gaming_ax3000_firmware:*:*:*:*:*:*:*:*
asus tuf-ax5400 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:tuf-ax5400_firmware:*:*:*:*:*:*:*:*
asus zenwifi ax (xt8) firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:zenwifi_ax_\(xt8\)_firmware:*:*:*:*:*:*:*:*
asus zenwifi xd6 firmware< 3.0.0.4.386.45898nvdUScpe:2.3:o:asus:zenwifi_xd6_firmware:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-11-19modified 2026-07-09

related (469)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-57488US	—	—	—	—
CVE-2026-102479US	—	—	—	—
CVE-2026-88829US	high	—	—	—
CVE-2026-88092US	critical	—	—	—
CVE-2026-70188US	critical	—	—	—

+464 more

references (23)

External citations — patches, advisories, analysis.

scry

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