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NVD / CVE Program· CNA Linux

CVE-2025-23159: media: venus: hfi: add a check to handle OOB in sfr region

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 1b8fb257234e7d2d4b3f48af07c5aa5e11c71634, 4dd109038d513b92d4d33524ffc89ba32e02ba48, 4e95233af57715d81830fe82b408c633edff59f4; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1.
  • Severity is disputed: the assigning authority (CNA) scores it 8.4, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 1b8fb257234e7d2d4b3f48af07c5aa5e11c71634, 4dd109038d513b92d4d33524ffc89ba32e02ba48, 4e95233af57715d81830fe82b408c633edff59f4; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1 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: hfi: add a check to handle OOB in sfr region sfr->buf_size is in shared memory and can be modified by malicious user. OOB write is possible when the size is made higher than actual sfr data buffer. Cap the size to allocated size for such cases.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 1, 2025
Updated
Aug 5, 2026
EPSS
0.2% · 13th percentile

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%

CNA vs NVD score

NVD
5.5
CNA · Linux
8.4
2.9 point gap

CVSS:3.1/AV:L/AC:L/PR:N/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-2025-23159

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 5.10.237
  • linux linux kernel5.11 and later · before 5.15.181
  • linux linux kernel5.16 and later · before 6.1.135
  • linux linux kernel4.13 and later · before 5.4.293
  • linux linux kernel6.7 and later · before 6.12.24
  • linux linux kernel6.13 and later · before 6.13.12
  • linux linux kernel6.14 and later · before 6.14.3
  • linux linux kernel6.2 and later · before 6.6.88

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 4dd109038d513b92d4d33524ffc89ba32e02ba48affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 8879397c0da5e5ec1515262995e82cdfd61b282aaffected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 1b8fb257234e7d2d4b3f48af07c5aa5e11c71634affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 4e95233af57715d81830fe82b408c633edff59f4affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 5af611c70fb889d46d2f654b8996746e59556750affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before 530f623f56a6680792499a8404083e17f8ec51f4affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before a062d8de0be5525ec8c52f070acf7607ec8cbfe4affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before d78a8388a27b265fcb2b8d064f088168ac9356b0affected · git
    • d96d3f30c0f2f564f6922bf4ccdf4464992e31fb and later · before f4b211714bcc70effa60c34d9fa613d182e3ef1eaffected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.135-16.1.135-1
Debian:13linuxbefore 6.12.25-16.12.25-1

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-2025-23157May 1, 2025 · media: venus: hfi_parser: add check to avoid out of bound access
    28Monitor
  • ← EarlierCVE-2025-23158May 1, 2025 · media: venus: hfi: add check to handle incorrect queue size
    31Monitor
  • Later →CVE-2025-23160May 1, 2025 · media: mediatek: vcodec: Fix a resource leak related to the scp device in FW initialization
    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 Linux1b8fb257234e7d2d4b3f48af07c5aa5e11c71634Vendor (CNA)
Linux Linux4dd109038d513b92d4d33524ffc89ba32e02ba48Vendor (CNA)
Linux Linux4e95233af57715d81830fe82b408c633edff59f4Vendor (CNA)
Linux Linux530f623f56a6680792499a8404083e17f8ec51f4Vendor (CNA)
Linux Linux5af611c70fb889d46d2f654b8996746e59556750Vendor (CNA)
Linux Linux8879397c0da5e5ec1515262995e82cdfd61b282aVendor (CNA)
Linux Linuxa062d8de0be5525ec8c52f070acf7607ec8cbfe4Vendor (CNA)
Linux Linuxd78a8388a27b265fcb2b8d064f088168ac9356b0Vendor (CNA)
Linux Linuxf4b211714bcc70effa60c34d9fa613d182e3ef1eVendor (CNA)
azl3 kernel 6.6.85.1-4 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.135-1 · 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.

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
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-787 · Out-of-bounds Write

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 (10 more)

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

All records