CVE-2022-3643

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

0.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 38.0% of scored records. A rank, not a probability.

NVD base score

6.5 (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:C/C:N/I:N/A:H

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

2022-12-07 00:00Z3 YR AGO

Last updated

2024-08-03 01:14Z2 YR AGO

Reserved

2022-10-21

Assigning CNA

XEN

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

edc0a3d926156ffe106a097009c7c7ba1d16a1b815ff329bbb05de6205d90ed8

• xenbits.xenproject.orghttps://xenbits.xenproject.org/xsa/advisory-423.txt
• www.openwall.com[oss-security] 20221207 Xen Security Advisory 423 v2 (CVE-2022-3643) - Guests can trigger NIC interface reset/abort/crash via netbackhttp://www.openwall.com/lists/oss-security/2022/12/07/2mailing-list
• lists.debian.org[debian-lts-announce] 20221222 [SECURITY] [DLA 3244-1] linux-5.10 security updatehttps://lists.debian.org/debian-lts-announce/2022/12/msg00031.htmlmailing-list
• lists.debian.org[debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2022/12/msg00034.htmlmailing-list
• packetstormsecurity.comhttp://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html