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CVE-2023-3159

17
FAUCET Score

CVE-2023-3159 is a use-after-free vulnerability in the Linux Kernel's FireWire driver, specifically affecting the outbound_phy_packet_callback function. This flaw allows a local attacker with special privileges to trigger a use-after-free condition if queue_event() fails. Rated as Medium severity with a CVSS score of 6.7, it requires high privileges (PR:H) but has high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H). There is currently no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.18:-:*:*:*:*:*:*
5.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
5.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*
5.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.7%
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 54th percentile among its peer group of 3,720 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 (5)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: cm1 kernel 5.10.183.1-1 on CBL Mariner 1.0Fixed in: 5.10.183.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.116.1-2 on CBL Mariner 2.0Fixed in: 5.15.116.1-2
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

Vendor Advisories (2)

microsoft2023-Jun/CVE-2023-3159Moderate

A use after free issue was discovered in driver/firewire in outbound_phy_packet_callback in the Linux Kernel. In this flaw a local attacker with special privilege may cause a use after free problem when queue_event() fails.

Jun 13, 2023
redhatCVE-2023-3159Low

kernel: use after free issue in driver/firewire in outbound_phy_packet_callback

Apr 9, 2022

References

github.com / torvalds/linux/commit/b7c81f80246fac44077166f3e07103affe6db8ff
Patch