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CVE-2023-54220: Linux 6.4
CVE-2023-54220. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00155 (percentile 0.04161), scored 14-Oct-2026.
Affected technology
Linux · 490bf37eaabb0a857ed1ae8e75d8854e41662f1c to before 66f3e55960698c874b0598277913b478ecd29573, c9e080c3005fd183c56ff8f4d75edb5da0765d2c to before 720a297b334e85d34099e83d1f375b92c3efedd6, d5cd2928d31042a7c0a01464f9a8d95be736421d to before b653289ca6460a6552c8590b75dfa84a0140a46b, 2c86a1305c1406f45ea780d06953c484ea1d9e6e to before bd70d0b28010d560a8be96b44fea86fe2ba016ae, 1ba5594739d858e524ff0f398ee1ebfe0a8b9d41 to before 18e27df4f2b4e257c317ba8076f31a888f6cc64b, af4d6dbb1a92ea424ad1ba1d0c88c7fa2345d872 to before 0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6c, 04e82793f068d2f0ffe62fcea03d007a8cdc16a7 to before 375806616f8c772c33d40e112530887b37c1a816, 04e82793f068d2f0ffe62fcea03d007a8cdc16a7 to before dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534, 8e596aed5f2f98cf3e6e98d6fe1d689f4a319308, 4.14.316 to before 4.14.324, 4.19.284 to before 4.19.293, 5.4.244 to before 5.4.255, 5.10.181 to before 5.10.192, 5.15.113 to before 5.15.128, 6.1.30 to before 6.1.47, 6.3.4 to before 6.4
Linux
Linux · 6.4
Linux
Component: Not specified by the source
File: drivers/tty/serial/8250/8250_port.c
Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 31.2 /100 (P4)
- CVSS 3.1
- 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00155 · percentile 0.04161 · 2026-10-14
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-15 22:58:54.984414+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2023-54220.html