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CVE-2023-53432

firewire: net: fix use after free in fwnet_finish_incoming_packet()

HIGH
7.8
CVSS Score
Published: September 18, 2025 at 04:04 PM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: firewire: net: fix use after free in fwnet_finish_incoming_packet() The netif_rx() function frees the skb so we can't dereference it to save the skb->len.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v < 5.15.1282.6.31 ≤ v < 5.15.1282.6.31 ≤ v < 6.1.472.6.31 ≤ v < 6.4.122.6.31 ≤ v < 6.55.16 ≤ v < 6.1.476.2 ≤ v < 6.4.122.6.31c76acec6d55107b652a37c90b36c00bc8b04dabb
Vendor states this is fixed in 2ea70379e4f4efa95c9daa7f3f9bdd4d40aec927 (fixed)
Vendor states this is fixed in 3ff256751a2853e1ffaa36958ff933ccc98c6cb5 (fixed)
Vendor states this is fixed in 9040adc38cf6bfbb77034d558ac2c52f70d840ac (fixed)
Vendor states this is fixed in 9860921ab4521252dc39bb21b9c936bd09a00982 (fixed)
Vendor states this is fixed in 2.6.31 (unaffected)
Vendor states this is fixed in 5.15.128 (unaffected)
Vendor states this is fixed in 6.1.47 (unaffected)
Vendor states this is fixed in 6.4.12 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

References (4)

Patch
Source: cverecord
https://git.kernel.org/stable/c/2ea70379e4f4efa95c9daa7f3f9bdd4d40aec927
Patch
Source: cverecord
https://git.kernel.org/stable/c/9040adc38cf6bfbb77034d558ac2c52f70d840ac
Patch
Source: cverecord
https://git.kernel.org/stable/c/9860921ab4521252dc39bb21b9c936bd09a00982
Patch
Source: cverecord
https://git.kernel.org/stable/c/3ff256751a2853e1ffaa36958ff933ccc98c6cb5

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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