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CVE-2022-2327

20
FAUCET Score

CVE-2022-2327 is a high-severity double-free vulnerability in the Linux kernel's io_uring subsystem, affecting versions prior to commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859. This flaw arises because io_uring operations can incorrectly manage reference counts, leading to memory corruption. With a CVSS score of 7.8, a local attacker can achieve high confidentiality, integrity, and availability impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.1
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 54th 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)

charmpatch availablevia llm_extracted
View patch

Vendor Advisories (1)

charmllm-charm-d6b665a0462d67d8HIGH

Linux kernel local privilege escalation and container breakout (CVE-2022-2327)

Dec 21, 2023

References

git.kernel.org / pub/scm/linux/kernel/git/stable/linux.git/commit
Mailing ListPatchVendor Advisory
kernel.dance
PatchThird Party Advisory
security.netapp.com / advisory/ntap-20230203-0009