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Fencer Vulns
medium 5.3

CVE-2022-26376 json

A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New G…

published 2022-08-05 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-30935

cvss
5.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

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.

Patch / fix

  • 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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Asuswrt-Merlin Asuswrt-Merlin New Gen

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.