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CVE-2022-50007

16
FAUCET Score

CVE-2022-50007 describes a reference count leak in the Linux kernel's XFRM subsystem, specifically within the __xfrm_policy_check() function. This vulnerability occurs when fetching a policy object fails, leading to an un-decremented reference count for a previously acquired object, potentially causing memory leaks. Rated Medium (CVSS 5.5), it requires local access with low attack complexity and could lead to high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.20, < 4.9.327CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.292CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.257CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.212CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.140CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 52nd percentile among its peer group of 15,940 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-477.10.1.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50007Low

kernel: xfrm: fix refcount leak in __xfrm_policy_check()

Jun 18, 2025

References

git.kernel.org / stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df
Patch
git.kernel.org / stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be
Patch
git.kernel.org / stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea
Patch
git.kernel.org / stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b
Patch
git.kernel.org / stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d
Patch
git.kernel.org / stable/c/8f94b933103ee1bda119543369cc18a1be5536db
Patch
git.kernel.org / stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe
Patch
git.kernel.org / stable/c/d66c052879791313f90c0584420f196a038fb8b8
Patch