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CVE-2023-3359

20
FAUCET Score

CVE-2023-3359 is a NULL Pointer Dereference vulnerability in the Linux kernel's brcm_nvram_parse function (drivers/nvmem/brcm_nvram.c), affecting Linux and Linux kernel products. This medium-severity vulnerability (CVSS 5.5) can lead to a denial of service (availability impact) through a local, low-privileged attack with low complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*

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
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
10.7%
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 50th 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 (7)

microsoftpatch availablevia msrc
Product: cm1 kernel 5.10.185.1-1 on CBL Mariner 1.0Fixed in: 5.10.185.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.118.1-2 on CBL Mariner 2.0Fixed in: 5.15.118.1-2
microsoftpatch availablevia msrc
Product: cbl2 hyperv-daemons 5.15.118.1-1 on CBL Mariner 2.0Fixed in: 5.15.118.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 5.15.118.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 5.10.185.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 5.10.185.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 5.15.118.1-1

Vendor Advisories (3)

microsoft2023-Jul/CVE-2023-3359

CVE-2023-3359

Jul 11, 2023
microsoft2023-Jun/CVE-2023-3359Moderate

An issue was discovered in the Linux kernel brcm_nvram_parse in drivers/nvmem/brcm_nvram.c. Lacks for the check of the return value of kzalloc() can cause the NULL Pointer Dereference.

Jun 13, 2023
redhatCVE-2023-3359Moderate

kernel: brcm_nvram_parse in drivers/nvmem/brcm_nvram.c lacks check of the return value of kzalloc() and will cause the NULL Pointer Dereference

Jan 27, 2023

References

git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
Mailing ListPatch