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CVE-2022-49667

22
FAUCET Score

CVE-2022-49667 is a use-after-free vulnerability in the Linux kernel's bonding network driver, specifically affecting the 802.3ad aggregation mode. This flaw occurs when a slave interface is unbound, leading to premature clearing of an aggregator while other slave ports still reference the freed memory. Rated 7.8 HIGH (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), it can result in high confidentiality, integrity, and availability impacts, likely requiring local access for exploitation. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.7, < 4.9.322CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.287CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.251CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.204CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.129CPE 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
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 57th percentile among its peer group of 17,070 CVEs.

Social Chatter

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 (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsFixed in: kernel-0:5.14.0-70.163.1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsFixed in: kernel-rt-0:5.14.0-70.163.1.rt21.235.el9_0
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49667Moderate

kernel: net: bonding: fix use-after-free after 802.3ad slave unbind

Feb 26, 2025

References

git.kernel.org / stable/c/050133e1aa2cb49bb17be847d48a4431598ef562
Patch
git.kernel.org / stable/c/2765749def4765c5052a4c66445cf4c96fcccdbc
Patch
git.kernel.org / stable/c/63b2fe509f69b90168a75e04e14573dccf7984e6
Patch
git.kernel.org / stable/c/893825289ba840afd86bfffcb6f7f363c73efff8
Patch
git.kernel.org / stable/c/a853b7a3a9fd1d74a4ccdd9cd73512b7dace2f1e
Patch
git.kernel.org / stable/c/b90ac60303063a43e17dd4aec159067599d255e6
Patch
git.kernel.org / stable/c/ef0af7d08d26c5333ff4944a559279464edf6f15
Patch
git.kernel.org / stable/c/f162f7c348fa2a5555bafdb5cc890b89b221e69c
Patch