CVE-2022-21123

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

6.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 92.8% of scored records. A rank, not a probability.

NVD base score

5.5 (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:U/C:H/I:N/A:N

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2022-06-15 19:59Z4 YR AGO

Last updated

2025-05-05 16:40Z1 YR AGO

Reserved

2021-11-12

Assigning CNA

intel

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-459Incomplete CleanupBase

Data version

5.1

Document digest

a7f0fc948cc1b905c81732b21895b575b65bdd9c8330b1ae2822d6586c54b2f2

• www.intel.comhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.htmlx_refsource_MISC
• www.openwall.com[oss-security] 20220616 Xen Security Advisory 404 v2 (CVE-2022-21123,CVE-2022-21125,CVE-2022-21166) - x86: MMIO Stale Data vulnerabilitieshttp://www.openwall.com/lists/oss-security/2022/06/16/1mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2022-391e24517dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHTEW3RXU2GW6S3RCPQG4VNCZGI3TOSV/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2022-177a008b98https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4P2KJYL74KGLHE4JZETVW7PZH6ZIABA/vendor-advisoryx_refsource_FEDORA
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20220624-0008/x_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2022-925fc688c1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCVOMHBQRH4KP7IN6U24CW7F2D2L5KBS/vendor-advisoryx_refsource_FEDORA
• lists.debian.org[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-5173https://www.debian.org/security/2022/dsa-5173vendor-advisoryx_refsource_DEBIAN
• www.debian.orgDSA-5178https://www.debian.org/security/2022/dsa-5178vendor-advisoryx_refsource_DEBIAN
• www.debian.orgDSA-5184https://www.debian.org/security/2022/dsa-5184vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2022-2c9f8224f8https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202208-23https://security.gentoo.org/glsa/202208-23vendor-advisoryx_refsource_GENTOO