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Fencer Vulns
high 8.8

CVE-2022-27643 in the critical feed json

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.…

published 2023-03-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-32144

cvss
8.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
25.4%
EPSS 25.4% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15692.

Patch / fix

  • netgear r6400_firmware 1.0.1.78, 1.0.4.126
  • netgear r6700_firmware 1.0.4.126
  • netgear r6900p_firmware 1.3.3.148
  • netgear r7000_firmware 1.0.11.134
  • netgear r7000p_firmware 1.3.3.148
  • netgear r7850_firmware 1.0.5.84
  • netgear r7900p_firmware 1.4.3.88
  • netgear r7960p_firmware 1.4.3.88
  • netgear r8000_firmware 1.0.4.84
  • netgear r8000p_firmware 1.4.3.88
  • netgear r8500_firmware 1.0.2.158
  • netgear rax200_firmware 1.0.6.138
  • netgear rax75_firmware 1.0.6.138
  • netgear rax80_firmware 1.0.6.138
  • netgear rs400_firmware 1.5.1.86
  • netgear r7100lg_firmware 1.0.0.76
  • netgear wndr3400_firmware 1.0.1.44
  • netgear wnr3500l_firmware 1.2.0.72
  • netgear xr300_firmware 1.0.3.72
  • netgear dc112a_firmware 1.0.0.64

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

25.44% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.8 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • NETGEAR R6700v3

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

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.