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NVD / CVE Program· CNA Linux

CVE-2025-71145: usb: phy: isp1301: fix non-OF device reference imbalance

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.17% (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 03bbdaa4da8c6ea0c8431a5011db188a07822c8a, 43e58abad6c08c5f0943594126ef4cd6559aac0b, 5.11.

Low priority for now. Upgrade to Linux Linux 03bbdaa4da8c6ea0c8431a5011db188a07822c8a, 43e58abad6c08c5f0943594126ef4cd6559aac0b, 5.11 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: usb: phy: isp1301: fix non-OF device reference imbalance A recent change fixing a device reference leak in a UDC driver introduced a potential use-after-free in the non-OF case as the isp1301_get_client() helper only increases the reference count for the returned I2C device in the OF case. Increment the reference count also for non-OF so that the caller can decrement it unconditionally. Note that this is inherently racy just as using the returned I2C device is since nothing is preventing the PHY driver from being unbound while in use.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Jan 23, 2026
Updated
Aug 5, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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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 kernel5.10.248 and later · before 5.11

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

    • 21c7c83d592e6335bfb6d65608da3726f976bad4affected
    • 0c2b0e747010fa645342138d71339a0ecb823bb0 and later · before 43e58abad6c08c5f0943594126ef4cd6559aac0baffected · git
    • 33c2e2a87313bc1afe9f7febbbb2014c431a2c5d and later · before 03bbdaa4da8c6ea0c8431a5011db188a07822c8aaffected · git
    • 8481323710062051b3c42bff94ee5b18a2b496ca and later · before 75c5d9bce072abbbc09b701a49869ac23c34a906affected · git
    • 8bd518ea03b81eb7b4a734b7b901866c448f6c07 and later · before 5d3df03f70547d4e3fc10ed4381c052eff51b157affected · git
    • cefaad839a384a72331aedad927b1944fb6943dc and later · before 7501ecfe3e5202490c2d13dc7e181203601fcd69affected · git
    • c84117912bddd9e5d87e68daf182410c98181407 and later · before b4b64fda4d30a83a7f00e92a0c8a1d47699609f3affected · git
    • 5.10.248 and later · before 5.11affected · semver
    • all versionsunknown

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-2026-22976Jan 21, 2026 · net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset
    22Monitor
  • ← EarlierCVE-2026-22977Jan 21, 2026 · net: sock: fix hardened usercopy panic in sock_recv_errqueue
    22Monitor
  • Later →CVE-2025-71146Jan 23, 2026 · netfilter: nf_conncount: fix leaked ct in error paths
    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 Linux03bbdaa4da8c6ea0c8431a5011db188a07822c8aVendor (CNA)
Linux Linux43e58abad6c08c5f0943594126ef4cd6559aac0bVendor (CNA)
Linux Linux5.11Vendor (CNA)
Linux Linux5d3df03f70547d4e3fc10ed4381c052eff51b157Vendor (CNA)
Linux Linux7501ecfe3e5202490c2d13dc7e181203601fcd69Vendor (CNA)
Linux Linux75c5d9bce072abbbc09b701a49869ac23c34a906Vendor (CNA)
Linux Linuxb4b64fda4d30a83a7f00e92a0c8a1d47699609f3Vendor (CNA)

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.

No history yet (it accumulates with the daily EPSS job).

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
high · data or configuration can be modified
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
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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✗ → ✓

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References

Show all references (5 more)

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

All records