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CVE-2022-50064

19
FAUCET Score

CVE-2022-50064 is a use-after-free vulnerability in the Linux kernel's virtio-blk driver, specifically affecting the handling of virtual queues during system suspend and resume operations. This flaw occurs because the hctx->user_data pointer becomes invalid after resume, leading to a kernel crash. With a CVSS score of 7.8 (High), this vulnerability can be exploited locally with low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.19, < 5.19.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 23rd percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-362.8.1.el9_3
View patch

Vendor Advisories (1)

redhatCVE-2022-50064Moderate

kernel: virtio-blk: Avoid use-after-free on suspend/resume

Jun 18, 2025

References

git.kernel.org / stable/c/2b54e14535bc34bf649372060d518ec9f2b893b3
Patch
git.kernel.org / stable/c/8d12ec10292877751ee4463b11a63bd850bc09b5
Patch