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NVD / CVE Program· CNA Linux

CVE-2022-49324: mips: cpc: Fix refcount leak in mips_cpc_default_phys_base

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.25% (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 1699ec1bfb59304a788901474f6bb003f7831b61, 4.14.283, 4.16.

Low priority for now. Upgrade to Linux Linux 1699ec1bfb59304a788901474f6bb003f7831b61, 4.14.283, 4.16 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: mips: cpc: Fix refcount leak in mips_cpc_default_phys_base Add the missing of_node_put() to release the refcount incremented by of_find_compatible_node().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 17th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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.

Follow CVE-2022-49324

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 kernelbefore 4.14.283
  • linux linux kernel4.15 and later · before 4.19.247
  • linux linux kernel4.20 and later · before 5.4.198
  • linux linux kernel5.5 and later · before 5.10.122
  • linux linux kernel5.11 and later · before 5.15.47
  • linux linux kernel5.16 and later · before 5.17.15
  • linux linux kernel5.18 and later · before 5.18.4

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

    • 7a676d14cc093c19c07d213a0ddc7f5c47154aae, 4.16affected
    • dc2f0da8350e413923ad67e2e26d8d9f1fb97aff and later · before bed702566dcdb6ebe300bc0c62bf3600cf4d5874affected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before 961ee8a6eeef4632a215d995d837b204f8c7c2d4affected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before cc0aed22d33ced9e266c50bdf1cbe668c5acfdf8affected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before c667b3872a4c435a3f29d4e15971cd8c378b0043affected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before 1699ec1bfb59304a788901474f6bb003f7831b61affected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before 8f843cdfc202caaa5d67db3395d893e56362e43aaffected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before aae6b4bb63c694bc91714412718f15468407fe51affected · git
    • 791412dafbbfd860e78983d45cf71db603a82f67 and later · before 4107fa700f314592850e2c64608f6ede4c077476affected · git
    • 4.14.27 and later · before 4.14.283affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.5-15.18.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2022-49322Feb 26, 2025 · tracing: Fix sleeping function called from invalid context on RT kernel
    22Monitor
  • ← EarlierCVE-2022-49323Feb 26, 2025 · iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()
    22Monitor
  • Later →CVE-2022-49325Feb 26, 2025 · tcp: add accessors to read/set tp->snd_cwnd
    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 Linux1699ec1bfb59304a788901474f6bb003f7831b61Vendor (CNA)
Linux Linux4.14.283Vendor (CNA)
Linux Linux4.16Vendor (CNA)
Linux Linux4107fa700f314592850e2c64608f6ede4c077476Vendor (CNA)
Linux Linux8f843cdfc202caaa5d67db3395d893e56362e43aVendor (CNA)
Linux Linux961ee8a6eeef4632a215d995d837b204f8c7c2d4Vendor (CNA)
Linux Linuxaae6b4bb63c694bc91714412718f15468407fe51Vendor (CNA)
Linux Linuxbed702566dcdb6ebe300bc0c62bf3600cf4d5874Vendor (CNA)
Linux Linuxc667b3872a4c435a3f29d4e15971cd8c378b0043Vendor (CNA)
Linux Linuxcc0aed22d33ced9e266c50bdf1cbe668c5acfdf8Vendor (CNA)
debian:linux5.18.5-1 · Debian:12Package 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
none
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
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records