CVE-2022-26320

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-330

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://fermatattack.secvuln.infoThird Party Advisory
https://global.canon/en/support/security/index.htmlThird Party Advisory
https://web.archive.org/web/20220922042721/https://safezoneswupdate.com/
https://www.fujifilm.com/fbglobal/eng/company/news/notice/2022/0302_rsakey_announce.htmlMitigation, Third Party Advisory
https://www.rambus.com/security/response-center/advisories/rmbs-2021-01/
https://fermatattack.secvuln.infoThird Party Advisory
https://global.canon/en/support/security/index.htmlThird Party Advisory
https://safezoneswupdate.com
https://www.fujifilm.com/fbglobal/eng/company/news/notice/2022/0302_rsakey_announce.htmlMitigation, Third Party Advisory

Timeline

Published: Mar 14, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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