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NVD / CVE Program· CNA Linux

CVE-2025-39710: media: venus: Add a check for packet size after reading from shared memory

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: 0.17% (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 0520c89f6280d2b60ab537d5743601185ee7d8ab, 2d8cea8310a245730816a1fd0c9fa4a5a3bdc68c, 49befc830daa743e051a65468c05c2ff9e8580e6; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1.

Low priority for now. Upgrade to Linux Linux 0520c89f6280d2b60ab537d5743601185ee7d8ab, 2d8cea8310a245730816a1fd0c9fa4a5a3bdc68c, 49befc830daa743e051a65468c05c2ff9e8580e6; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1 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: media: venus: Add a check for packet size after reading from shared memory Add a check to ensure that the packet size does not exceed the number of available words after reading the packet header from shared memory. This ensures that the size provided by the firmware is safe to process and prevent potential out-of-bounds memory access.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Sep 5, 2025
Updated
Oct 19, 2026
EPSS
0.1% · 6th 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 · 0.1%

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

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

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.

Follow CVE-2025-39710

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
debiandebian linux

Affected versions

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

  • debian debian linux11.0
  • linux linux kernel5.5 and later · before 5.10.241
  • linux linux kernel5.11 and later · before 5.15.190
  • linux linux kernel5.16 and later · before 6.1.149
  • linux linux kernel4.13 and later · before 5.4.297
  • linux linux kernel6.7 and later · before 6.12.44
  • linux linux kernel6.13 and later · before 6.16.4
  • linux linux kernel6.2 and later · before 6.6.103

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

    • 4.13affected
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 0520c89f6280d2b60ab537d5743601185ee7d8abaffected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before f5b7a943055a4a106d40a03bacd940e28cc1955faffected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before ef09b96665f16f3f0bac4e111160e6f24f1f8791affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 7638bae4539dcebc3f68fda74ac35d73618ec440affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before ba567c2e52fbcf0e20502746bdaa79e911c2e8cfaffected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 2d8cea8310a245730816a1fd0c9fa4a5a3bdc68caffected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before f0cbd9386f974d310a0d20a02e4a1323e95ea654affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 49befc830daa743e051a65468c05c2ff9e8580e6affected · git
    • before 4.13not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.153-16.1.153-1
Debian:13linuxbefore 6.12.48-16.12.48-1
Debian:14linuxbefore 6.16.5-16.16.5-1

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-2025-39708Sep 5, 2025 · media: iris: Fix NULL pointer dereference
    22Monitor
  • ← EarlierCVE-2025-39709Sep 5, 2025 · media: venus: protect against spurious interrupts during probe
    22Monitor
  • Later →CVE-2025-39711Sep 5, 2025 · media: ivsc: Fix crash at shutdown due to missing mei_cldev_disable() calls
    31Monitor

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 Linux0520c89f6280d2b60ab537d5743601185ee7d8abVendor (CNA)
Linux Linux2d8cea8310a245730816a1fd0c9fa4a5a3bdc68cVendor (CNA)
Linux Linux49befc830daa743e051a65468c05c2ff9e8580e6Vendor (CNA)
Linux Linux7638bae4539dcebc3f68fda74ac35d73618ec440Vendor (CNA)
Linux Linuxba567c2e52fbcf0e20502746bdaa79e911c2e8cfVendor (CNA)
Linux Linuxef09b96665f16f3f0bac4e111160e6f24f1f8791Vendor (CNA)
Linux Linuxf0cbd9386f974d310a0d20a02e4a1323e95ea654Vendor (CNA)
Linux Linuxf5b7a943055a4a106d40a03bacd940e28cc1955fVendor (CNA)
azl3 kernel 6.6.96.2-2 on Azure Linux 3.06.6.104.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.153-1 · 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
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 (10 more)

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

All records