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TI-2022-09749 Aliases CVE-2022-26376GHSA-5v6f-j685-6xv8

Out-of-bounds write in Asuswrt-Merlin New Gen

Priority HIGH 81CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New Gen prior to 386.7.. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01494 74th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Asuswrt-Merlin New Gen (Asuswrt-Merlin): 386.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
Asuswrt-MerlinAsuswrt-Merlin New Genbefore 386.7386.7Patch availableCNA
  • Asuswrt-Merlin New Gen VendorAsuswrt-Merlin Affected before 386.7 Fixed in 386.7 Patch available CNA

CPE configurations NVD · 36

CPEVersionsRoleVendor
cpe:2.3:o:asus:asuswrt:*:*:*:*:*:*:*:*before 3.0.0.4.386_48706VulnerableASUS
cpe:2.3:o:asuswrt-merlin:new_gen:*:*:*:*:*:*:*:*before 386.7VulnerableAsuswrt-Merlin
cpe:2.3:o:asus:xt8_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48706VulnerableASUS
cpe:2.3:h:asus:xt8:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:tuf-ax3000_v2_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48750VulnerableASUS
cpe:2.3:h:asus:tuf-ax3000_v2:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:xd4_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48790VulnerableASUS
cpe:2.3:h:asus:xd4:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:et12_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48823VulnerableASUS
cpe:2.3:h:asus:et12:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
  • cpe:2.3:o:asus:asuswrt:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48706 Vulnerable ·ASUS
  • cpe:2.3:o:asuswrt-merlin:new_gen:*:*:*:*:*:*:*:* Versions before 386.7 Vulnerable ·Asuswrt-Merlin
  • cpe:2.3:o:asus:xt8_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48706 Vulnerable ·ASUS
  • cpe:2.3:h:asus:xt8:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:tuf-ax3000_v2_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48750 Vulnerable ·ASUS
  • cpe:2.3:h:asus:tuf-ax3000_v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:xd4_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48790 Vulnerable ·ASUS
  • cpe:2.3:h:asus:xd4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:et12_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48823 Vulnerable ·ASUS
  • cpe:2.3:h:asus:et12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
Show 26 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:asus:gt-ax6000_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48823VulnerableASUS
cpe:2.3:h:asus:gt-ax6000:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:xt12_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48823VulnerableASUS
cpe:2.3:h:asus:xt12:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:rt-ax58u_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48908VulnerableASUS
cpe:2.3:h:asus:rt-ax58u:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:xt9_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.388_20027VulnerableASUS
cpe:2.3:h:asus:xt9:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:xd6_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49356VulnerableASUS
cpe:2.3:h:asus:xd6:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:gt-ax11000_pro_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48996VulnerableASUS
cpe:2.3:h:asus:gt-ax11000_pro:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:gt-axe16000_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_48786VulnerableASUS
cpe:2.3:h:asus:gt-axe16000:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:rt-ax86u_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49447VulnerableASUS
cpe:2.3:h:asus:rt-ax86u:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:rt-ax68u_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49479VulnerableASUS
cpe:2.3:h:asus:rt-ax68u:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:rt-ax82u_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49380VulnerableASUS
cpe:2.3:h:asus:rt-ax82u:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:rt-ax56u_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49559VulnerableASUS
cpe:2.3:h:asus:rt-ax56u:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:rt-ax55_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49559VulnerableASUS
cpe:2.3:h:asus:rt-ax55:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
cpe:2.3:o:asus:gt-ax11000_firmware:*:*:*:*:*:*:*:*before 3.0.0.4.386_49559VulnerableASUS
cpe:2.3:h:asus:gt-ax11000:-:*:*:*:*:*:*:*not specified by NVDRunning onASUS
  • cpe:2.3:o:asus:gt-ax6000_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48823 Vulnerable ·ASUS
  • cpe:2.3:h:asus:gt-ax6000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:xt12_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48823 Vulnerable ·ASUS
  • cpe:2.3:h:asus:xt12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:rt-ax58u_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48908 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax58u:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:xt9_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.388_20027 Vulnerable ·ASUS
  • cpe:2.3:h:asus:xt9:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:xd6_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49356 Vulnerable ·ASUS
  • cpe:2.3:h:asus:xd6:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:gt-ax11000_pro_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48996 Vulnerable ·ASUS
  • cpe:2.3:h:asus:gt-ax11000_pro:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:gt-axe16000_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_48786 Vulnerable ·ASUS
  • cpe:2.3:h:asus:gt-axe16000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:rt-ax86u_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49447 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax86u:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:rt-ax68u_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49479 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax68u:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:rt-ax82u_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49380 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax82u:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:rt-ax56u_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49559 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax56u:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:rt-ax55_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49559 Vulnerable ·ASUS
  • cpe:2.3:h:asus:rt-ax55:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS
  • cpe:2.3:o:asus:gt-ax11000_firmware:*:*:*:*:*:*:*:* Versions before 3.0.0.4.386_49559 Vulnerable ·ASUS
  • cpe:2.3:h:asus:gt-ax11000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ASUS

Remediation

  • Fix · CNA Asuswrt-Merlin New Gen (Asuswrt-Merlin) Fixed in 386.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-26376
  2. 2026-10-03 Alias added: GHSA-5v6f-j685-6xv8

References

Exploit 1

Sources

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