LiveActive security incident?Get immediate response
CVE Record

CVE-2025-23156: media: venus: hfi_parser: refactor hfi packet parsing logic

In the Linux kernel, the following vulnerability has been resolved: media: venus: hfi_parser: refactor hfi packet parsing logic words_count denotes the number of words in total payload, while data points to payload of various property within it. When words_count reaches last word, data can access memory beyond the total payload. This can lead to OOB access. With this patch, the utility api for handling individual properties now returns the size of data consumed. Accordingly remaining bytes are calculated before parsing the payload, thereby eliminates the OOB access possibilities.

HighCVSS 7.8Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A flaw in the Linux Qualcomm Venus video parser can make the kernel read beyond valid packet memory. A local, low-privileged attacker may be able to trigger serious confidentiality, integrity, or availability impact. Exposure depends on whether the affected Venus media component is present and reachable.

Executive priority

Treat this as a high-priority kernel maintenance issue on systems using the Venus media component, especially multi-user or workload-hosting devices. It is not described as remotely exploitable or actively exploited. Complete targeted inventory promptly, then patch exposed systems through supported vendor channels.

Technical view

The Venus HFI parser could advance property data beyond the total payload when its word counter reached the final word, causing an out-of-bounds access. The stable fixes make property parsers report consumed data and calculate remaining bytes before further parsing. CVSS 3.1 is 7.8: local access, low complexity, low privileges, and no user interaction.

Likely exposure

Prioritize Linux systems using the Venus media driver, particularly where untrusted local users, applications, or workloads can access media interfaces. The bundle lists affected release entries spanning 4.19 through 6.15, but does not provide sufficiently clear range semantics; confirm exposure against the distribution or device vendor’s advisory.

Exploitation context

The supplied record does not report active exploitation, and the CVE is not listed as KEV. That does not prove exploitation is absent. The CVSS vector indicates exploitation requires local, low-privileged access, while the exact triggering conditions and practical reliability are not established by these sources.

Researcher notes

The record establishes an out-of-bounds access in media/venus HFI property parsing and provides multiple stable-tree fixes. It does not establish the access direction, attacker-controlled data path, crash behavior, exploitability beyond CVSS impacts, or precise affected-version boundaries. Avoid inferring code execution or confirmed data disclosure without further evidence.

Mitigation direction

  • Install the distribution or device vendor’s kernel update containing the applicable stable fix.
  • Reboot into the updated kernel and remove unsupported vulnerable kernels from normal boot options.
  • Where updates are delayed, consult vendor guidance for supported exposure-reduction measures.
  • Prioritize shared systems running untrusted local applications or workloads with media-device access.

Validation and detection

  • Inventory running kernel versions and identify systems with the Venus media driver present or loaded.
  • Map each kernel package to its vendor advisory and applicable upstream stable-fix commit.
  • After updating, verify the running kernel changed and the package includes the vendor’s correction.
  • Review kernel logs for unexplained media-driver faults, while recognizing logs cannot establish exploitation.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2025-23156 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
11Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2025-23156Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001dda, 1a73374a04e555103e5369429a30999114001ddaunaffected
LinuxLinux4.19, 0, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.