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CVE-2022-49066

17
FAUCET Score

CVE-2022-49066 is a vulnerability in the Linux kernel's veth device driver, affecting the linux_kernel product. It arises when a decapsulated packet is fed to a veth device with act_mirred, leading to a kernel BUG due to insufficient linear data for the ethernet header. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring local privileges, and resulting in high availability impact (denial of service). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.24, < 4.9.311CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.276CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.239CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.190CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.112CPE 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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd percentile among its peer group of 15,940 CVEs.

Social Chatter

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 (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-425.3.1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-162.6.1.el9_1
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49066Moderate

kernel: veth: Ensure eth header is in skb's linear part

Feb 26, 2025

References

git.kernel.org / stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec
Patch
git.kernel.org / stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2
Patch
git.kernel.org / stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42
Patch
git.kernel.org / stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27
Patch
git.kernel.org / stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87
Patch
git.kernel.org / stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d
Patch
git.kernel.org / stable/c/d417a859221f127e8edf09c14b76ab50f825e171
Patch
git.kernel.org / stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c
Patch