CVE-2022-26376

Name: CVE-2022-26376
Creator: NVD / NIST
Published: 2022-08-05T22:15:11.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.07%

Last modified Jun 17, 2026

CVE-2022-26376 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.07%

60.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Asus	Asuswrt	< 3.0.0.4.386_48706
Asuswrt-Merlin	New Gen	< 386.7
Asus	Xt8 Firmware	< 3.0.0.4.386_48706
Asus	Tuf-Ax3000 V2 Firmware	< 3.0.0.4.386_48750
Asus	Xd4 Firmware	< 3.0.0.4.386_48790
Asus	Et12 Firmware	< 3.0.0.4.386_48823
Asus	Gt-Ax6000 Firmware	< 3.0.0.4.386_48823
Asus	Xt12 Firmware	< 3.0.0.4.386_48823
Asus	Rt-Ax58u Firmware	< 3.0.0.4.386_48908
Asus	Xt9 Firmware	< 3.0.0.4.388_20027
Asus	Xd6 Firmware	< 3.0.0.4.386_49356
Asus	Gt-Ax11000 Pro Firmware	< 3.0.0.4.386_48996
Asus	Gt-Axe16000 Firmware	< 3.0.0.4.386_48786
Asus	Rt-Ax86u Firmware	< 3.0.0.4.386_49447
Asus	Rt-Ax68u Firmware	< 3.0.0.4.386_49479
Asus	Rt-Ax82u Firmware	< 3.0.0.4.386_49380
Asus	Rt-Ax56u Firmware	< 3.0.0.4.386_49559
Asus	Rt-Ax55 Firmware	< 3.0.0.4.386_49559
Asus	Gt-Ax11000 Firmware	< 3.0.0.4.386_49559

References

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511Exploit, Third Party Advisory

Timeline

Published: Aug 5, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26376?

How severe is CVE-2022-26376?

CVE-2022-26376 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26376?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-26376?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST