CVE-2022-21125

Xen vulnerability

CVSS

5.5

EPSS

6.5%

EPSS pct

93th

Exploited

No known

Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Affected vendor

Xen

Affected product

Xen

CVSS vector

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

Weakness type (CWE)

CWE-459 — Incomplete Cleanup

Published

2022-06-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 6.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2022-21125

Confirm whether Xen Xen is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-21125.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-21125

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-21125 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2022-21125?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2022-21125.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM

CVE-2008-2803

Firefox vulnerability

Data Engine vulnerability