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Fencer Intel
critical 9.1

CVE-2022-26320 json

The Rambus SafeZone Basic Crypto Module before 10.4.0, as used in certain Fujifilm (formerly Fuji Xerox) devices before 2022-03-01, Canon i…

published 4y ago modified 4mo ago also EUVD-2022-30881

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

The Rambus SafeZone Basic Crypto Module before 10.4.0, as used in certain Fujifilm (formerly Fuji Xerox) devices before 2022-03-01, Canon imagePROGRAF and imageRUNNER devices through 2022-03-14, and potentially many other devices, generates RSA keys that can be broken with Fermat's factorization method. This allows efficient calculation of private RSA keys from the public key of a TLS certificate.

Patch / fix

  • rambus safezone_basic_crypto_module 10.4.0
  • fujifilm apeos_c7070_firmware 1.1.7
  • fujifilm apeos_c6570_firmware 1.1.7
  • fujifilm apeos_c5570_firmware 1.1.7
  • fujifilm apeos_c4570_firmware 1.1.7
  • fujifilm apeos_c3570_firmware 1.1.7
  • fujifilm apeos_c3070_firmware 1.1.7
  • fujifilm apeos_c7070_g_firmware 1.1.7
  • fujifilm apeos_c6570_g_firmware 1.1.7
  • fujifilm apeos_c5570_g_firmware 1.1.7
  • fujifilm apeos_c4570_g_firmware 1.1.7
  • fujifilm apeos_c3570_g_firmware 1.1.7
  • fujifilm apeos_c3070_g_firmware 1.1.7
  • fujifilm apeos_c328_df_firmware 202112062053
  • fujifilm apeos_c328_dw_firmware 202112062053
  • fujifilm apeos_c325_dw_firmware 202112062053
  • fujifilm apeos_c325_z_firmware 202112062053
  • fujifilm apeos_c8180_firmware 1.1.6
  • fujifilm apeos_c7580_firmware 1.1.6
  • fujifilm apeos_c6580_firmware 1.1.6

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Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N

Classification

Weakness
  • CWE-330 Use of Insufficiently Random Values

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.