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Vulnerability details: VCID-87xg-7fgu-e3h8
Vulnerability ID VCID-87xg-7fgu-e3h8
Aliases CVE-2025-21927
Summary kernel: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
Status Published
Exploitability 0.5
Weighted Severity 7.2
Risk 3.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
cvssv3 8.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21927.json
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2025-21927
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2025-21927
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.8 https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
ssvc Track https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
cvssv3.1 7.8 https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
ssvc Track https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
cvssv3.1 7.8 https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064
ssvc Track https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21927.json
https://api.first.org/data/v1/epss?cve=CVE-2025-21927
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21927
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126 https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
2356593 https://bugzilla.redhat.com/show_bug.cgi?id=2356593
9fbc953d6b38bc824392e01850f0aeee3b348722 https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
ad95bab0cd28ed77c2c0d0b6e76e03e031391064 https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064
RHSA-2025:4339 https://access.redhat.com/errata/RHSA-2025:4339
RHSA-2025:4340 https://access.redhat.com/errata/RHSA-2025:4340
RHSA-2025:4341 https://access.redhat.com/errata/RHSA-2025:4341
RHSA-2025:4469 https://access.redhat.com/errata/RHSA-2025:4469
RHSA-2025:4471 https://access.redhat.com/errata/RHSA-2025:4471
RHSA-2025:4496 https://access.redhat.com/errata/RHSA-2025:4496
RHSA-2025:4497 https://access.redhat.com/errata/RHSA-2025:4497
RHSA-2025:4498 https://access.redhat.com/errata/RHSA-2025:4498
RHSA-2025:4499 https://access.redhat.com/errata/RHSA-2025:4499
RHSA-2025:4509 https://access.redhat.com/errata/RHSA-2025:4509
RHSA-2025:7423 https://access.redhat.com/errata/RHSA-2025:7423
RHSA-2025:7501 https://access.redhat.com/errata/RHSA-2025:7501
USN-7605-1 https://usn.ubuntu.com/7605-1/
USN-7605-2 https://usn.ubuntu.com/7605-2/
USN-7606-1 https://usn.ubuntu.com/7606-1/
USN-7628-1 https://usn.ubuntu.com/7628-1/
USN-7764-1 https://usn.ubuntu.com/7764-1/
USN-7764-2 https://usn.ubuntu.com/7764-2/
USN-7765-1 https://usn.ubuntu.com/7765-1/
USN-7766-1 https://usn.ubuntu.com/7766-1/
USN-7767-1 https://usn.ubuntu.com/7767-1/
USN-7767-2 https://usn.ubuntu.com/7767-2/
USN-7779-1 https://usn.ubuntu.com/7779-1/
USN-7790-1 https://usn.ubuntu.com/7790-1/
USN-7800-1 https://usn.ubuntu.com/7800-1/
USN-7801-1 https://usn.ubuntu.com/7801-1/
USN-7801-2 https://usn.ubuntu.com/7801-2/
USN-7801-3 https://usn.ubuntu.com/7801-3/
USN-7802-1 https://usn.ubuntu.com/7802-1/
USN-7809-1 https://usn.ubuntu.com/7809-1/
No exploits are available.
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21927.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-10-01T19:22:21Z/ Found at https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-10-01T19:22:21Z/ Found at https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-10-01T19:22:21Z/ Found at https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064
Exploit Prediction Scoring System (EPSS)
Percentile 0.067
EPSS Score 0.00023
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:47:01.769556+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21927.json 38.6.0