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CVE-2023-4265

21
FAUCET Score

CVE-2023-4265 describes potential buffer overflow vulnerabilities (CWE-120) within the Zephyr RTOS, specifically affecting the usb_dc_native_posix.c and function_rndis.c components. This vulnerability carries a CVSS score of 6.8 (Medium), indicating that an attacker with physical access (AV:P) could achieve high confidentiality, integrity, and availability impacts (C:H, I:H, A:H) with low attack complexity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.0CPE matchmatch criteria
cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.78%
Probability of exploitation in next 30 days
EPSS Percentile
52.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0078 is in the 91st percentile among its peer group of 1,532 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

packetstormsecurity.com / files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
ExploitThird Party Advisory
seclists.org / fulldisclosure/2023/Nov/1
Mailing ListThird Party Advisory
github.com / zephyrproject-rtos/zephyr/security/advisories/GHSA-4vgv-5r6q-r6xh
ExploitVendor Advisory
openwall.com / lists/oss-security/2023/11/07/1
Mailing List