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Fencer Vulns
high 7.5

CVE-2023-2626 json

Authentication Bypass in OpenThread Boarder Router devices

published 2023-07-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34097

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

There exists an authentication bypass vulnerability in OpenThread border router devices and implementations. This issue allows unauthenticated nodes to craft radio frames using “Key ID Mode 2”: a special mode using a static encryption key to bypass security checks, resulting in arbitrary IP packets being allowed on the Thread network. This provides a pathway for an attacker to send/receive arbitrary IPv6 packets to devices on the LAN, potentially exploiting them if they lack additional authentication or contain any network vulnerabilities that would normally be mitigated by the home router’s NAT firewall. Effected devices have been mitigated through an automatic update beyond the affected range.

Patch / fix

  • Google Nest Hub Max 10.20221207.2.120
  • Google Nest Hub (2nd. gen) w/ Sleep Tracking 10.20221207.2.100042
  • Google Nest Wifi 6E 1.63.355999
  • Google Google Wifi (next gen) 14150.882.9
  • Google Nest Wifi Point 1.56.368671
  • google nest_hub 10.20221207.2.100042
  • google nest_wifi_6e 1.63.355999
  • google wifi 14150.882.9
  • google nest_wifi_point 1.56.368671
  • google nest_hub_max 10.20221207.2.120

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:A/AC:H/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

  • Google Nest Hub Max
  • Google Nest Hub (2nd. gen) w/ Sleep Tracking
  • Google Nest Wifi 6E
  • Google Google Wifi (next gen)
  • Google Nest Wifi Point
  • google nest_hub
  • google nest_wifi_6e
  • google wifi
  • google nest_wifi_point
  • google nest_hub_max

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.