CVE-2022-33745

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 22.6% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-07-26 00:00Z4 YR AGO

Last updated

2024-08-03 08:09Z2 YR AGO

Reserved

2022-06-15

Assigning CNA

XEN

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

No CWE assigned

Data version

5.1

Document digest

75e4cb11c21f42a2d635ce6e8c40b71ff3a9cc29d4d630ddff7f17291c9ae57d

• xenbits.xenproject.orghttps://xenbits.xenproject.org/xsa/advisory-408.txt
• xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-408.html
• www.openwall.com[oss-security] 20220726 Xen Security Advisory 408 v2 (CVE-2022-33745) - insufficient TLB flush for x86 PV guests in shadow modehttp://www.openwall.com/lists/oss-security/2022/07/26/2mailing-list
• www.openwall.com[oss-security] 20220726 Xen Security Advisory 408 v3 (CVE-2022-33745) - insufficient TLB flush for x86 PV guests in shadow modehttp://www.openwall.com/lists/oss-security/2022/07/26/3mailing-list
• lists.fedoraproject.orgFEDORA-2022-4f7cd241e2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HUFIMNGYP5VQAA6KE3T2I5GW6UP6F7BS/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-a0d7a5eaf2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYI3OMJ7RIZNL3C6GUWNANNPEUUID6FM/vendor-advisory
• www.debian.orgDSA-5272https://www.debian.org/security/2022/dsa-5272vendor-advisory