CVE-2025-23136· NVD / CVE Program· CNA Linux

thermal: int340x: Add NULL check for adev

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: 0.22% (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 0c49f12c77b77a706fd41370c11910635e491845, 2542a3f70e563a9e70e7ded314286535a3321bdb, 3155d5261b518776d1b807d9d922669991bbee56; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0 5.15.180.1-1.

Low priority for now. Upgrade to Linux Linux 0c49f12c77b77a706fd41370c11910635e491845, 2542a3f70e563a9e70e7ded314286535a3321bdb, 3155d5261b518776d1b807d9d922669991bbee56; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0 5.15.180.1-1 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: thermal: int340x: Add NULL check for adev Not all devices have an ACPI companion fwnode, so adev might be NULL. This is similar to the commit cd2fd6eab480 ("platform/x86: int3472: Check for adev == NULL"). Add a check for adev not being set and return -ENODEV in that case to avoid a possible NULL pointer deref in int3402_thermal_probe(). Note, under the same directory, int3400_thermal_probe() has such a check. [ rjw: Subject edit, added Fixes: ]

MediumCVSS 5.5 · v3.1—No exploit Fix available

BDU:2025-12167

Published: Apr 16, 2025
Updated: Oct 15, 2026
EPSS: 0.2% · 11th percentile
CWE: CWE-476

Report tools

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Action score

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.

CNA vs NVD score

NVD: 5.5
CNA · Linux: 5.5; agree

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

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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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.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

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

linux linux kernel3.18 and later · before 5.4.292
linux linux kernel5.5 and later · before 5.10.236
linux linux kernel5.11 and later · before 5.15.180
linux linux kernel5.16 and later · before 6.1.134
linux linux kernel6.2 and later · before 6.6.87
linux linux kernel6.7 and later · before 6.12.23
linux linux kernel6.13 and later · before 6.13.11
linux linux kernel6.14 and later · before 6.14.2

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
- 3.18affected
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before d0d21c8e44216fa9afdb3809edf213f3c0a8c060affected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before bc7b5f782d28942dbdfda70df30ce132694a06deaffected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before 3155d5261b518776d1b807d9d922669991bbee56affected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before 6a810c462f099353e908c70619638884cb82229caffected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before ac2eb7378319e3836cdf3a2c15a0bdf04c50e81daffected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before 953d28a4f459fcbde2d08f51aeca19d6b0f179f3affected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before 0c49f12c77b77a706fd41370c11910635e491845affected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before 8e8f1ddf4186731649df8bc9646017369eb19186affected · git
- 77e337c6e23e3b9d22e09ffec202a80f755a54c2 and later · before 2542a3f70e563a9e70e7ded314286535a3321bdbaffected · git

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.135-1	6.1.135-1
Debian:13	linux	before 6.12.25-1	6.12.25-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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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-2025-23132Apr 16, 2025 · f2fs: quota: fix to avoid warning in dquot_writeback_dquots()
22Monitor
← EarlierCVE-2025-23133Apr 16, 2025 · wifi: ath11k: update channel list in reg notifier instead reg worker
31Monitor
Later →CVE-2025-2073Apr 16, 2025 · Out-of-Bounds Read in netfilter/ipset in Linux Kernel ChromeOS [6.1, 5.15, 5.10, 5.4, 4.19] allows a local attacker with low privileges to t
35Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
Linux Linux	0c49f12c77b77a706fd41370c11910635e491845	Vendor (CNA)
Linux Linux	2542a3f70e563a9e70e7ded314286535a3321bdb	Vendor (CNA)
Linux Linux	3155d5261b518776d1b807d9d922669991bbee56	Vendor (CNA)
Linux Linux	6a810c462f099353e908c70619638884cb82229c	Vendor (CNA)
Linux Linux	8e8f1ddf4186731649df8bc9646017369eb19186	Vendor (CNA)
Linux Linux	953d28a4f459fcbde2d08f51aeca19d6b0f179f3	Vendor (CNA)
Linux Linux	ac2eb7378319e3836cdf3a2c15a0bdf04c50e81d	Vendor (CNA)
Linux Linux	bc7b5f782d28942dbdfda70df30ce132694a06de	Vendor (CNA)
Linux Linux	d0d21c8e44216fa9afdb3809edf213f3c0a8c060	Vendor (CNA)
azl3 kernel 6.6.85.1-4 on Azure Linux 3.0	6.6.92.2-1 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0	5.15.180.1-1 · CBL-Mariner Releases	Microsoft (MSRC)
debian:linux	6.1.135-1 · Debian:12	Package 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)

CWE-476 · NULL Pointer Dereference

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

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

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

References

git.kernel.org/stable/c/0c49f12c77b77a706fd41370c11910635e491845

Show all references (12 more)

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

All records