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TI-2021-18230 Aliases CVE-2021-41437GHSA-69p6-xm96-58f8

An HTTP response splitting attack in web application in ASUS RT-AX88U before…

Priority LOW 31CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

An HTTP response splitting attack in web application in ASUS RT-AX88U before v3.0.0.4.388.20558 allows an attacker to craft a specific URL that if an authenticated victim visits it, the URL will give access to the cloud storage of the attacker.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0112 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:asus:rt-ax88u_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.388.20558VulnerableASUS
cpe:2.3:h:asus:rt-ax88u:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
  • cpe:2.3:o:asus:rt-ax88u_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.388.20558 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax88u:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41437
  2. 2026-10-03 Alias added: GHSA-69p6-xm96-58f8

References

Patch 2

  • TI-2021-18228 A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000… CVSS 3.1CRITICAL 9.8
  • TI-2021-02220 In ASUS RT-AX3000, ZenWiFi AX (XT8), RT-AX88U, and other ASUS routers with firmware <… CVSS 3.1HIGH 7.5
  • TI-2022-09945 ASUS RT-AX88U - Format String CVSS 3.1CRITICAL 9.8
  • TI-2023-21946 ASUS RT-AX88U - externally-controlled format string CVSS 3.1HIGH 8.8
  • TI-2023-17191 ASUS RT-AX88U - Out-of-bounds Read - 2 CVSS 3.1HIGH 7.5
  • TI-2021-19533 ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS). CVSS 3.1CRITICAL 9.0
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences