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CVE-2022-49145· NVD / CVE Program· CNA Linux

ACPI: CPPC: Avoid out of bounds access when parsing _CPC data

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.28% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 28d5387c1994f5e1e0d41b30a1f3dd6e1f609252, 40d8abf364bcab23bc715a9221a3c8623956257b, 97b5593fd1b182b3fdb180b6bbe64ec09669988b.

Low priority for now. Upgrade to Linux Linux 28d5387c1994f5e1e0d41b30a1f3dd6e1f609252, 40d8abf364bcab23bc715a9221a3c8623956257b, 97b5593fd1b182b3fdb180b6bbe64ec09669988b or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Avoid out of bounds access when parsing _CPC data If the NumEntries field in the _CPC return package is less than 2, do not attempt to access the "Revision" element of that package, because it may not be present then. BugLink: https://lore.kernel.org/lkml/20220322143534.GC32582@xsang-OptiPlex-9020/

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 19th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.4 and later · before 4.9.311
  • linux linux kernel4.10 and later · before 4.14.276
  • linux linux kernel4.15 and later · before 4.19.238
  • linux linux kernel4.20 and later · before 5.4.189
  • linux linux kernel5.5 and later · before 5.10.110
  • linux linux kernel5.11 and later · before 5.15.33
  • linux linux kernel5.16 and later · before 5.16.19
  • linux linux kernel5.17 and later · before 5.17.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.4affected
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before b3f15609ffa521de12244cd6af24002030dda3f5affected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before d208ea44e25b31db5a4d5e8c31df51787a3e9303affected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before 28d5387c1994f5e1e0d41b30a1f3dd6e1f609252affected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before cb249f8c00f40dba83b7da8207ac14ca46e9ec9eaffected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before e5b681822cac1f8093759b02e16c06b2c64b6788affected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before 97b5593fd1b182b3fdb180b6bbe64ec09669988baffected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before b80b19b32a432c9eee1cd200ef7aaddf608f54d1affected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before d7339f2a3938fb56b5f28d53f5345900b5fa0e74affected · git
    • 337aadff8e4567e39669e07d9a88b789d78458b5 and later · before 40d8abf364bcab23bc715a9221a3c8623956257baffected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.17.3-15.17.3-1
SUSE:Linux Enterprise Live Patching 12 SP5kernel-defaultbefore 4.12.14-122.261.14.12.14-122.261.1
SUSE:Linux Enterprise Live Patching 12 SP5kgraft-patch-SLE12-SP5_Update_69before 1-8.3.11-8.3.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-sourcebefore 4.12.14-122.261.14.12.14-122.261.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-symsbefore 4.12.14-122.261.14.12.14-122.261.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49141Feb 26, 2025 · net: dsa: felix: fix possible NULL pointer dereference
    22Monitor
  • ← EarlierCVE-2022-49144Feb 26, 2025 · io_uring: fix memory leak of uid in files registration
    22Monitor
  • Later →CVE-2022-49146Feb 26, 2025 · virtio: use virtio_device_ready() in virtio_device_restore()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux28d5387c1994f5e1e0d41b30a1f3dd6e1f609252Vendor (CNA)
Linux Linux40d8abf364bcab23bc715a9221a3c8623956257bVendor (CNA)
Linux Linux97b5593fd1b182b3fdb180b6bbe64ec09669988bVendor (CNA)
Linux Linuxb3f15609ffa521de12244cd6af24002030dda3f5Vendor (CNA)
Linux Linuxb80b19b32a432c9eee1cd200ef7aaddf608f54d1Vendor (CNA)
Linux Linuxcb249f8c00f40dba83b7da8207ac14ca46e9ec9eVendor (CNA)
Linux Linuxd208ea44e25b31db5a4d5e8c31df51787a3e9303Vendor (CNA)
Linux Linuxd7339f2a3938fb56b5f28d53f5345900b5fa0e74Vendor (CNA)
Linux Linuxe5b681822cac1f8093759b02e16c06b2c64b6788Vendor (CNA)
debian:linux5.17.3-1 · Debian:12Package registry (OSV)
suse:kernel-default4.12.14-122.261.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)
suse:kernel-source4.12.14-122.261.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-syms4.12.14-122.261.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_691-8.3.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records