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Fencer Intel
medium 5.0

CVE-2022-27644 json

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NET…

published 3y ago modified 4mo ago also EUVD-2022-32145

cvss
5.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information 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 downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15797.

Patch / fix

  • netgear r6400_firmware 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 r7960p_firmware 1.4.3.88
  • netgear r8000_firmware 1.0.4.84
  • netgear r8000p_firmware 1.4.3.88
  • 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 cbr40_firmware 2.5.0.28
  • netgear lbr1020_firmware 2.7.4.2
  • netgear lbr20_firmware 2.7.4.2
  • netgear rbr10_firmware 2.7.4.24
  • netgear rbr20_firmware 2.7.4.24
  • netgear rbr40_firmware 2.7.4.24
  • netgear rbr50_firmware 2.7.4.24

Is CVE-2022-27644 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.0 CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
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-295 Improper Certificate Validation

References

Sources

Fencer Intel 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.