Medium

CVE-2025-38283 — hisi_acc_vfio_pci: bugfix live migration function without VF device driver

In the Linux kernel, the following vulnerability has been resolved: hisi_acc_vfio_pci: bugfix live migration function without VF device driver If the VF device driver is not loaded in the Guest OS and we attempt to perform device data migration, the address of the migrated data will be NULL. The live migration recovery operation on the destination side will access a null address value, which will cause access errors. Therefore, live migration of VMs without added VF device drivers does not require device data migration. In addition, when the queue address data obtained by the destination is empty, device queue recovery processing will not be performed.

Published Jul 10, 2025 · Updated Oct 30, 2026 · Sources: CVE Program (cve.org) e CISA ADP, NIST National Vulnerability Database, GitHub Security Advisories · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+1
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.2%

ahead of 10% of scored CVEs · Oct 30, 2026

Affects

Linux

Linux and 1 more

CVSS base

5.5

Medium · 4 source(s)

Prioritization reference: 8.8 provisional

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

Documented patch — git.kernel.org (NIST National Vulnerability Database)
Documented patch — git.kernel.org (NIST National Vulnerability Database)
Documented patch — git.kernel.org (NIST National Vulnerability Database)
Documented patch — git.kernel.org (NIST National Vulnerability Database)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux, Linux Linux Kernel).
Apply the fixed version or the patch documented under Remediation.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ b0eed085903e7758532696d64397901a75bba8ba and < 4bbc4db69264d4d38a6340d9751fb213943346d3≥ b0eed085903e7758532696d64397901a75bba8ba and < b5ef128926cd34dffa2a66607b9c82b902581ef8≥ b0eed085903e7758532696d64397901a75bba8ba and < 59a834592dd200969fdf3c61be1cb0615c647e45≥ b0eed085903e7758532696d64397901a75bba8ba and < 53e8e8e909f7c3a77857d09d2b733a42547f57ee≥ b0eed085903e7758532696d64397901a75bba8ba and < 2777a40998deb36f96b6afc48bd397cf58a4edf0version 5.18	Vulnerable	CVE Program (cve.org) e CISA ADP
Linux	Linux Kernel	≥ 5.18 and < 6.6.94≥ 6.7 and < 6.12.34≥ 6.13 and < 6.15.3	Vulnerable	NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
8.8	CVSS 3.1	High	2.0	6.0	416baaa9-dc9f-4396-8d5f-8c081fb06d67 via NIST National Vulnerability Database
8.8	CVSS 3.1	High	—	—	Linux via CVE Program (cve.org) e CISA ADP
5.5	CVSS 3.1	Medium	1.8	3.6	nvd@nist.gov via NIST National Vulnerability Database
5.5	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (score shown at the top: nvd@nist.gov)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 8.8 (416baaa9-dc9f-4396-8d5f-8c081fb06d67 via NIST National Vulnerability Database) as a conservative provisional reference — not a definitive official score.

EPSS over time FIRST

Oct 29, 2026 → Oct 30, 2026 · 2 reading(s) · max 0.20%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.

endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Fix documented
Oct 30, 2026 · NIST National Vulnerability Database
Affected products added · linux/linux kernel
Oct 30, 2026 · NIST National Vulnerability Database
CVSS changed · 8.8 → 5.5
Oct 30, 2026 · NIST National Vulnerability Database
Source status changed · Published → Modified
Oct 30, 2026 · NIST National Vulnerability Database
Record published
Oct 30, 2026
Affected products added · linux/linux
Oct 30, 2026 · CVE Program (cve.org) e CISA ADP
CVSS changed · 8.8
Oct 30, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Published
Oct 30, 2026 · CVE Program (cve.org) e CISA ADP
Record created in this database
Oct 30, 2026 · Alertas do Telegram
2025
CVE published
Jul 10, 2025 · Linux

Source activity

Repeated readings are counted rather than listed.

2× References added · Oct 30, 2026 – Oct 30, 2026
1× Official description updated · Oct 30, 2026 – Oct 30, 2026

References

7 on the record

git.kernel.org/stable/c/b5ef128926cd34dffa2a66607b9c82b902581ef8
Patch, CVE Program (cve.org) e CISA ADP
git.kernel.org/stable/c/53e8e8e909f7c3a77857d09d2b733a42547f57ee
Patch, CVE Program (cve.org) e CISA ADP
git.kernel.org/stable/c/2777a40998deb36f96b6afc48bd397cf58a4edf0
Patch, CVE Program (cve.org) e CISA ADP
git.kernel.org/stable/c/59a834592dd200969fdf3c61be1cb0615c647e45
Patch, CVE Program (cve.org) e CISA ADP
git.kernel.org/stable/c/4bbc4db69264d4d38a6340d9751fb213943346d3
CVE Program (cve.org) e CISA ADP
nvd.nist.gov/vuln/detail/CVE-2025-38283
GitHub Security Advisories
github.com/advisories/GHSA-69p8-9933-rxvc
GitHub Security Advisories

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

High CVE-2026-99216 Drivers: hv: Don't reset VMBus connection state on error/exit paths 3d
Unknown CVE-2026-99215 power: supply: core: prevent unregistering a power supply while a callback runs 3d
Unknown CVE-2026-99207 scsi: target: Disable interrupts while holding delayed_cmd_lock 3d
Unknown CVE-2026-99208 drm/xe/oa: Zero OA buffer at allocation 3d
Unknown CVE-2026-99209 drm/xe: skip eviction of a BO with no resource 3d
Unknown CVE-2026-99210 accel/rocket: clear rdev on device init failure 3d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2025-38283 is "hisi_acc_vfio_pci: bugfix live migration function without VF device driver", rated Medium. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.5 describes technical severity. EPSS 0.20% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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