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CVE-2022-48641

17
FAUCET Score

CVE-2022-48641 is a memory leak vulnerability in the Linux kernel's netfilter ebtables component, specifically when handling malformed blobs. This medium severity flaw (CVSS 5.5) allows a local attacker with low privileges to cause a denial of service (A:H) due to memory exhaustion, with no user interaction required. There is currently no public exploit code available, it is not listed in the KEV catalog, and it has received no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.14.292, < 4.14.295CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.19.257, < 4.19.260CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.4.212, < 5.4.215CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.10.140, < 5.10.146CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.15.64, < 5.15.71CPE 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
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 65th 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

Vendor Patches (4)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
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
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-48641Low

kernel: netfilter: ebtables: fix memory leak when blob is malformed

Apr 28, 2024

References

git.kernel.org / stable/c/11ebf32fde46572b0aaf3c2bdd97d923ef5a03ab
Patch
git.kernel.org / stable/c/1e98318af2f163eadaff815abcef38d27ca92c1e
Patch
git.kernel.org / stable/c/38cf372b17f0a5f35c1b716a100532d539f0eb33
Patch
git.kernel.org / stable/c/62ce44c4fff947eebdf10bb582267e686e6835c9
Patch
git.kernel.org / stable/c/754e8b74281dd54a324698803483f47cf3355ae1
Patch
git.kernel.org / stable/c/d5917b7af7cae0e2804f9d127a03268035098b7f
Patch
git.kernel.org / stable/c/ebd97dbe3c55d68346b9c5fb00634a7f5b10bbee
Patch