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CVE-2022-48779

21
FAUCET Score

CVE-2022-48779 is a use-after-free vulnerability in the Linux kernel's network subsystem, specifically within the ocelot driver, affecting Linux kernel versions. This flaw occurs when ocelot_vlan_member_del() frees memory that is subsequently accessed as the port's pvid_vlan. It carries a CVSSv3.1 score of 7.8 (High), indicating that a local attacker with low privileges could achieve high confidentiality, integrity, and availability impacts with low attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.16, < 5.16.11CPE 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
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 41st 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

Vendor Advisories (1)

redhatCVE-2022-48779Moderate

kernel: net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()

Jul 16, 2024

References

git.kernel.org / stable/c/c98bed60cdd7f22237ae256cc9c1c3087206b8a2
Mailing ListPatch
git.kernel.org / stable/c/ef57640575406f57f5b3393cf57f457b0ace837e
Mailing ListPatch