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TI-2026-68943 Aliases CVE-2026-19386GHSA-rx2g-2998-5867

Stack-based buffer overflow in ASUS router modules allows code execution

Priority MEDIUM 41CWE-121Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

ASUS router modules are affected, starting from the 3.0.0.6.102 series. A stack-based buffer overflow (CWE-121) occurs when a configuration file upload exceeds the expected buffer size. An authenticated nearby user with high privileges can execute arbitrary code by uploading a crafted configuration file.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A stack-based buffer overflow in the ASUS router modules allows an authenticated nearby user to execute arbitrary code via a crafted configuration file upload that exceeds the expected buffer size.Refer to the ' Security Update for ASUS Router Firmware  ' section on the ASUS Security Advisory for more information.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00192 8th 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
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ASUSRouter3.0.0.6.102 series—No fix listedCNA
  • Router VendorASUS Affected 3.0.0.6.102 series Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for ASUS Router. Refer to the Security Update for ASUS Router Firmware section of the ASUS Security Advisory for more information.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-19386
  2. 2026-10-07 Alias added: GHSA-rx2g-2998-5867
  3. 2026-10-07 CISA SSVC decision points changed
  4. 2026-10-07 Priority changed: MEDIUM → LOW
  5. 2026-10-07 Priority changed: LOW → MEDIUM
  6. 2026-10-08 CISA SSVC decision points changed

References

Other 1

  • TI-2021-12008 The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36933 "UNSUPPORTED WHEN ASSIGNED" Certain versions of the ASUS Live Update client were… KEVCVSS 4.0CRITICAL 9.3
  • TI-2023-20780 OS command injection in ASUS RT-AX55 KEVCVSS 3.1HIGH 8.8
  • TI-2018-04367 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
  • TI-2018-04368 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
  • TI-2014-07780 common.c in infosvr in ASUS WRT firmware 3.0.0.4.376_1071, 3.0.0.376.2524-g0013f52, and… CVSS 2.0HIGH 10.0
See all 365 →

Sources

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