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Fencer Vulns
critical 9.2

CVE-2024-22170 json

Unchecked buffer in Dynamic DNS client

published 2024-09-27 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-19766

cvss
9.2
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Western Digital My Cloud ddns-start on Linux allows Overflow Buffers.This issue affects My Cloud: before 5.29.102.

Patch / fix

  • Western Digital My Cloud 5.29.102
  • westerndigital wd_cloud_firmware 5.29.102
  • westerndigital my_cloud_dl4100_firmware 5.29.102
  • westerndigital my_cloud_dl2100_firmware 5.29.102
  • westerndigital my_cloud_ex2100_firmware 5.29.102
  • westerndigital my_cloud_mirror_g2_firmware 5.29.102
  • westerndigital my_cloud_firmware 5.29.102
  • westerndigital my_cloud_pr4100_firmware 5.29.102
  • westerndigital my_cloud_pr2100_firmware 5.29.102
  • westerndigital my_cloud_ex4100_firmware 5.29.102
  • westerndigital my_cloud_ex2_ultra_firmware 5.29.102

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X

Affected products

  • Western Digital My Cloud
  • westerndigital wd_cloud_firmware
  • westerndigital my_cloud_dl4100_firmware
  • westerndigital my_cloud_dl2100_firmware
  • westerndigital my_cloud_ex2100_firmware
  • westerndigital my_cloud_mirror_g2_firmware
  • westerndigital my_cloud_firmware
  • westerndigital my_cloud_pr4100_firmware
  • westerndigital my_cloud_pr2100_firmware
  • westerndigital my_cloud_ex4100_firmware
  • westerndigital my_cloud_ex2_ultra_firmware

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.