🛡️ CVE-2023-4263 — zephyr
Description
Potential buffer overflow vulnerability in the Zephyr IEEE 802.15.4 nRF 15.4 driver
How this vulnerability can be exploited
This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability high.
Weakness class
CVE-2023-4263 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.
Affected software and timeline
Affected software: zephyr (fixed in 3.4.0). Published on 13 October 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
packetstormsecurity.com
seclists.org
www.openwall.com
github.com
packetstormsecurity.com
seclists.org
www.openwall.com
github.com
Details
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| zephyr | — | 3.4.0 |
References
Similar Threats
- High CVE-2023-4257
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- High CVE-2023-4259
- High CVE-2023-4258
Site Security Check
Is zephyr part of your stack?
CVE-2023-4263 is rated CVSS 7.6 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.
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