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Fencer Vulns
medium 4.9

CVE-2026-62657 json

Certificate validation vulnerability in NETGEAR Gaming Router and certain Nighthawk models

published 2026-07-14 3 mo ago modified 2026-07-15 3 mo ago also EUVD-2026-44326

cvss
4.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

A security flaw in the router's certificate validation process was discovered in the NETGEAR XR1000 Gaming Router and certain Nighthawk models that could allow an unauthorized person to remotely access and take control of the device.

Patch / fix

  • NETGEAR MR70 V1.0.4.48
  • NETGEAR MS70 V1.0.4.48
  • NETGEAR RAXE500 V1.2.14.114
  • NETGEAR XR1000 V1.0.2.86

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
3 mo ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 4.9 CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CNA 4.0 4.9 CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber

Affected products

  • NETGEAR MR70
  • NETGEAR MS70
  • NETGEAR RAXE500
  • NETGEAR XR1000

Classification

Weakness
  • CWE-599 Missing Validation of OpenSSL Certificate

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.