CVE-2025-22117

Host crash and memory disclosure via unchecked length

Published Apr 16, 2025 · Updated Aug 5, 2026

Out-of-bounds read in the Linux kernel ice driver allows local users controlling an SR-IOV VF to disclose host memory or crash the host. ice_vc_fdir_parse_raw() trusts proto->raw.pkt_len from a VIRTCHNL_OP_ADD_FDIR_FILTER mailbox message and reads past the 4 KB buffer instead of enforcing VIRTCHNL_MAX_SIZE_RAW_PACKET. Exploitation requires control of an assigned VF mailbox; the read extends about 61 KB, exposing data through a matching oracle and risking a host kernel oops.

CVSS severity8.7
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the Linux kernel ice driver allows local users controlling an SR-IOV VF to disclose host memory or crash the host. ice_vc_fdir_parse_raw() trusts proto->raw.pkt_len from a VIRTCHNL_OP_ADD_FDIR_FILTER mailbox message and reads past the 4 KB buffer instead of enforcing VIRTCHNL_MAX_SIZE_RAW_PACKET. Exploitation requires control of an assigned VF mailbox; the read extends about 61 KB, exposing data through a matching oracle and risking a host kernel oops.

The record

CVE
CVE-2025-22117
Published
Apr 16, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1005, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.12
  2. Affected versionversion=99f419df8a5c5e1a58822203989f77712d01d410 <1388dd564183a5a18ec4a966748037736b5653c5
  3. Affected versionversion=99f419df8a5c5e1a58822203989f77712d01d410 <362f704ba73a359db9cded567e891d9a8f081875
  4. Affected versionversion=99f419df8a5c5e1a58822203989f77712d01d410 <363377af2c9e874fbba3a199408f8ec7b37906f7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=99f419df8a5c5e1a58822203989f77712d01d410 <1388dd564183a5a18ec4a966748037736b5653c5; version=99f419df8a5c5e1a58822203989f77712d01d410 <362f704ba73a359db9cded567e891d9a8f081875; version=99f419df8a5c5e1a58822203989f77712d01d410 <363377af2c9e874fbba3a199408f8ec7b37906f7

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.7Linux kernel CVE teamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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