CVE-2025-21993

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 11.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2025-04-02 12:53Z1 YR AGO

Last updated

2026-05-11 21:10Z3 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

bd4a51ffea4f29ecfde3947e0deb3728a642497774c0a8ea7e2e01471bce4dca

• git.kernel.orghttps://git.kernel.org/stable/c/a858cd58dea06cf85b142673deea8c5d87f11e70
• git.kernel.orghttps://git.kernel.org/stable/c/f763c82db8166e28f45b7cc4a5398a7859665940
• git.kernel.orghttps://git.kernel.org/stable/c/b388e185bfad32bfed6a97a6817f74ca00a4318f
• git.kernel.orghttps://git.kernel.org/stable/c/9bfa80c8aa4e06dff55a953c3fffbfc68a3a3b1c
• git.kernel.orghttps://git.kernel.org/stable/c/2d1eef248107bdf3d5a69d0fde04c30a79a7bf5d
• git.kernel.orghttps://git.kernel.org/stable/c/b253660fac5e0e9080d2c95e3a029e1898d49afb
• git.kernel.orghttps://git.kernel.org/stable/c/c1c6e527470e5eab0b2d57bd073530fbace39eab
• git.kernel.orghttps://git.kernel.org/stable/c/07e0d99a2f701123ad3104c0f1a1e66bce74d6e5
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html