01 Record

CVE-2025-21779

KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel

03 Exploitation and scoring

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: 0.24% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 14.5% of scored records. A rank, not a probability.
NVD base score: 5.5 (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:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Low. 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.

04 Metadata

Published

2025-02-27 02:18Z1 YR AGO

Last updated

2026-05-11 21:06Z3 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

823b54cd865dc993b8dafc2c6ed7f7e2c388000d6cdf293c36e38b001ad91c2a

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux214ff83d4473a7757fa18a64dc7efe3b0e158486 to < 61224533f2b61e252b03e214195d27d64b22989a, 214ff83d4473a7757fa18a64dc7efe3b0e158486 to < 45fa526b0f5a34492ed0536c3cdf88b78380e4de, 214ff83d4473a7757fa18a64dc7efe3b0e158486 to < 5393cf22312418262679eaadb130d608c75fe690, 214ff83d4473a7757fa18a64dc7efe3b0e158486 to < 874ff13c73c45ecb38cb82191e8c1d523f0dc81b, 214ff83d4473a7757fa18a64dc7efe3b0e158486 to < aca8be4403fb90db7adaf63830e27ebe787a76e8, 214ff83d4473a7757fa18a64dc7efe3b0e158486 to < ca29f58ca374c40a0e69c5306fc5c940a0069074, 214ff83d4473a7757fa18a64dc7efe3b0e158486 to < a8de7f100bb5989d9c3627d3a223ee1c863f3b69, 4.20—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/61224533f2b61e252b03e214195d27d64b22989a
git.kernel.orghttps://git.kernel.org/stable/c/45fa526b0f5a34492ed0536c3cdf88b78380e4de
git.kernel.orghttps://git.kernel.org/stable/c/5393cf22312418262679eaadb130d608c75fe690
git.kernel.orghttps://git.kernel.org/stable/c/874ff13c73c45ecb38cb82191e8c1d523f0dc81b
git.kernel.orghttps://git.kernel.org/stable/c/aca8be4403fb90db7adaf63830e27ebe787a76e8
git.kernel.orghttps://git.kernel.org/stable/c/ca29f58ca374c40a0e69c5306fc5c940a0069074
git.kernel.orghttps://git.kernel.org/stable/c/a8de7f100bb5989d9c3627d3a223ee1c863f3b69
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

01 Record index

CVE-2025-21779

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21779

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References