CVE-2023-21400

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.9% of scored records. A rank, not a probability.

NVD base score

6.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-07-12 23:53Z3 YR AGO

Last updated

2025-02-13 16:40Z1 YR AGO

Reserved

2022-11-03

Assigning CNA

google_android

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-667Improper LockingClass
• CWE-416Use After FreeVariant

Data version

5.1

Document digest

4138d66971ec03f28abe1c4db38d5afeec273287c9b4d0f6091db7d2d4916837

• source.android.comhttps://source.android.com/security/bulletin/pixel/2023-07-01
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/07/14/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/07/19/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/07/19/7
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/07/25/7
• www.debian.orghttps://www.debian.org/security/2023/dsa-5480
• packetstormsecurity.comhttp://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240119-0012/