CVE-2021-43702

Exp

ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS). The ASUS router admin panel does not sanitize the WiFI logs correctly, if an attacker was able to change the SSID of the router with a custom payload, they could achieve stored XSS on the device.

Published: 2022-07-05 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-43702 is rated High Exploit Risk (69.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.83%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-43702

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-43702

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.61% 0.83% +0.22%
2 2026-05-05 0.52% 0.61% +0.10%
3 2025-11-21 — 0.52% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-43702

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.3 6.0 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2021-43702

Affected software / configurations for CVE-2021-43702

Vendor Product Version Raw CPE
asus zenwifi_xd4s_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_xd4s_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_xt9_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_xt9_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_xd5_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_xd5_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_pro_et12_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_pro_et12_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi__pro_xt12_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi__pro_xt12_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_ax_hybrid_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_ax_hybrid_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_et8_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_et8_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_xd6_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_xd6_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_ac_mini_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_ac_mini_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_ax_mini_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_ax_mini_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_ax_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_ax_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus zenwifi_ac_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:zenwifi_ac_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac66u_b1_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac66u_b1_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax88u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax88u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax82u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax82u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax89x_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax89x_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax92u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax92u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax86u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax86u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax68u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax68u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax3000_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax3000_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax58u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax58u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax55_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax55_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ax56u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ax56u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac66u\+_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac66u\+_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rog_rapture_gt-ac5300_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rog_rapture_gt-ac5300_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rog_rapture_gt-ax11000_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rog_rapture_gt-ax11000_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rog_rapture_gt-ac2900_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rog_rapture_gt-ac2900_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1300uhp_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1300uhp_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1300g\+_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1300g\+_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus tuf_gaming_ax5400_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:tuf_gaming_ax5400_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus tuf_gaming_ax3000_v2_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:tuf_gaming_ax3000_v2_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1200_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1200_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac5300_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac5300_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1200g_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1200g_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1200hp_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1200hp_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1200g\+_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1200g\+_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1200e_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1200e_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac1200gu_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac1200gu_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac3100_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac3100_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac58u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac58u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac88u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac88u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac56u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac56u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac56r_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac56r_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac56s_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac56s_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac3200_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac3200_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac55u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac55u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac2900_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac2900_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac55uhp_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac55uhp_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac2600_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac2600_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac53_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac53_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac2400_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac2400_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac52u_b1_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac52u_b1_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac2200_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac2200_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac51u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac51u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac51u\+_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac51u\+_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac87u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac87u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac87r_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac87r_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-acrh17_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-acrh17_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac86u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac86u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-acrh13_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-acrh13_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac85u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac85u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n66u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n66u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n66r_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n66r_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n66w_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n66w_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n66c1_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n66c1_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac85p_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac85p_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n18u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n18u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac65p_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac65p_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n19_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n19_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac57u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac57u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n14uhp_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n14uhp_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac68u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac68u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac68r_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac68r_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac68p_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac68p_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac68w_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac68w_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac68uf_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac68uf_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n12e_b1_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n12e_b1_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n12e_c1_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n12e_c1_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-ac65u_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-ac65u_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*
asus rt-n12hp_b1_firmware 3.0.0.4.386.46061 cpe:2.3:o:asus:rt-n12hp_b1_firmware:3.0.0.4.386.46061:*:*:*:*:*:*:*

References for CVE-2021-43702

cvelogic Threat Intelligence