OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states "we do not consider it to be the application's responsibility to defend against platform architectural weaknesses."
https://ubuntu.com/security/CVE-2023-51767
https://security.netapp.com/advisory/ntap-20240125-0006/
https://www.openwall.com/lists/oss-security/2025/09/22/1
https://arxiv.org/abs/2309.02545
http://www.openwall.com/lists/oss-security/2025/10/01/1
http://www.openwall.com/lists/oss-security/2025/09/24/4
http://www.openwall.com/lists/oss-security/2025/09/23/4