CVE-2022-48655

Out-of-bounds read via unchecked domain index

Published Apr 28, 2024 · Updated May 11, 2026

Out-of-bounds read in the ARM SCMI reset driver in the Linux kernel allows attackers to access memory via an invalid reset-domain index. scmi_domain_reset computes a pointer into the dom_info descriptor array and reads its async_reset member without first checking the index against num_domains. Reachability requires a misbehaving in-kernel SCMI client to submit an out-of-range index; public sources demonstrate no user-controlled path or resulting disclosure or crash.

CVSS severity7.8
High
EPSS probability0.74%
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 ARM SCMI reset driver in the Linux kernel allows attackers to access memory via an invalid reset-domain index. scmi_domain_reset computes a pointer into the dom_info descriptor array and reads its async_reset member without first checking the index against num_domains. Reachability requires a misbehaving in-kernel SCMI client to submit an out-of-range index; public sources demonstrate no user-controlled path or resulting disclosure or crash.

The record

CVE
CVE-2022-48655
Published
Apr 28, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, CWE-119
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=5.4
  2. Affected versionversion=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <1f08a1b26cfc53b7715abc46857c6023bb1b87de
  3. Affected versionversion=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <7184491fc515f391afba23d0e9b690caaea72daf
  4. Affected versionversion=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <8e65edf0d37698f7a6cb174608d3ec7976baf49e
  5. Affected versionversion=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <e9076ffbcaed5da6c182b144ef9f6e24554af268
  6. Affected versionversion=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <f2277d9e2a0d092c13bae7ee82d75432bb8b5108

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.4; version=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <1f08a1b26cfc53b7715abc46857c6023bb1b87de; version=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <7184491fc515f391afba23d0e9b690caaea72daf; version=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <8e65edf0d37698f7a6cb174608d3ec7976baf49e; version=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <e9076ffbcaed5da6c182b144ef9f6e24554af268; version=95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 <f2277d9e2a0d092c13bae7ee82d75432bb8b5108
The Linux Kernel Organization · Linux Kernelversion=5.4; version=95a15d80aa0d <1f08a1b26cfc; version=95a15d80aa0d <7184491fc515; version=95a15d80aa0d <8e65edf0d376; version=95a15d80aa0d <e9076ffbcaed; version=95a15d80aa0d <f2277d9e2a0d

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.1CanonicalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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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