What’s Vulnerable › Vulnerabilities

CVE-2018-3646

• Severity: medium (CVSS 5.6 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-14 · updated 2026-06-17
• Weakness: CWE-200

Description

Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.

Affected products

• Intel Core I3: 330e, 330m, 330um, 350m, 370m, 380m (+106)
• Intel Core I5: 430m, 430um, 450m, 460m, 470um, 480m (+163)
• Intel Core I7: 7y75, 610e, 620le, 620lm, 620m, 620ue (+162)
• Intel Core M: 5y10, 5y10a, 5y10c, 5y31, 5y51, 5y70 (+1)
• Intel Core M3: 6y30, 7y30, 7y32
• Intel Core M5: 6y54, 6y57
• Intel Core M7: 6y75
• Intel Xeon: all versions

References

• http://support.lenovo.com/us/en/solutions/LEN-24163
• http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en
• http://www.securityfocus.com/bid/105080
• http://www.securitytracker.com/id/1041451
• http://www.securitytracker.com/id/1042004
• http://www.vmware.com/security/advisories/VMSA-2018-0020.html
• http://xenbits.xen.org/xsa/advisory-273.html
• https://access.redhat.com/errata/RHSA-2018:2384
• https://access.redhat.com/errata/RHSA-2018:2387
• https://access.redhat.com/errata/RHSA-2018:2388
• https://access.redhat.com/errata/RHSA-2018:2389
• https://access.redhat.com/errata/RHSA-2018:2390

Get alerted when CVE-2018-3646 or the next vulnerability affects your stack