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TI-2020-12203 Aliases CVE-2020-15499GHSA-frm8-4xr6-28qw

An issue was discovered on ASUS RT-AC1900P routers before 3.0.0.4.385_20253.

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

An issue was discovered on ASUS RT-AC1900P routers before 3.0.0.4.385_20253. They allow XSS via spoofed Release Notes on the Firmware Upgrade page.

Why it matters now

EPSS 0.00649 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

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-ac1900p_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.385.20253VulnerableASUS
cpe:2.3:h:asus:rt-ac1900p:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
  • cpe:2.3:o:asus:rt-ac1900p_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.385.20253 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ac1900p:-:*:*:*:*:*:*:* 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-2020-15499
  2. 2026-10-03 Alias added: GHSA-frm8-4xr6-28qw
  3. 2026-10-16 EPSS moved to the 50th–90th percentile

References

  • TI-2021-02220 In ASUS RT-AX3000, ZenWiFi AX (XT8), RT-AX88U, and other ASUS routers with firmware <… 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
  • TI-2020-12202 An issue was discovered on ASUS RT-AC1900P routers before 3.0.0.4.385_20253. CVSS 3.1MEDIUM 5.9

Sources