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NVD / CVE Program· CNA Linux

CVE-2026-74295: ASoC: codecs: hdac_hdmi: Validate written enum value

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: 0.16% (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 0b08baeccdcf52fad328ad645f5b4fbee04eea34, 216336418c007c4b44c650acf2fd3d2de5bb81e8, 7f02e9064b6f84e7f93c72f134306271eb4f7de4.

Low priority for now. Upgrade to Linux Linux 0b08baeccdcf52fad328ad645f5b4fbee04eea34, 216336418c007c4b44c650acf2fd3d2de5bb81e8, 7f02e9064b6f84e7f93c72f134306271eb4f7de4 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: ASoC: codecs: hdac_hdmi: Validate written enum value hdac_hdmi_set_pin_port_mux() uses the written enum value to index the texts array before calling snd_soc_dapm_put_enum_double(), which validates that the value is within the enum item range. An out-of-range value can therefore make the driver read past the texts array before the helper rejects the write. Move the lookup after the helper has accepted the value.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Aug 15, 2026
Updated
Oct 16, 2026
EPSS
0.1% · 5th percentile
CWE
—

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%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.1
NVD has not scored this yet; the score shown is the CNA’s.

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-2026-74295

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.

—

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

    • 4.6affected
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before 216336418c007c4b44c650acf2fd3d2de5bb81e8affected · git
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before bc464a6a9e352daa17b1636c090cf3185710b9a0affected · git
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before 8cbf24714d6b3f553fc959632c9781176a73a9a7affected · git
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before 7f02e9064b6f84e7f93c72f134306271eb4f7de4affected · git
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before 9131e4b023e0db5764680034bdc94aeae0b0f33daffected · git
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before d8961b5c7889b6ecc00f1409d36826df1665df27affected · git
    • 4a3478debf36c0aa0cf0860daec245b13cd4448f and later · before 0b08baeccdcf52fad328ad645f5b4fbee04eea34affected · git
    • before 4.6not affected · semver
    • 5.15.212 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-74293Aug 15, 2026 · ASoC: fsl: fsl_audmix: Validate written enum values
    31Monitor
  • ← EarlierCVE-2026-74294Aug 15, 2026 · ASoC: meson: aiu: Validate written enum values
    29Monitor
  • Later →CVE-2026-74296Aug 15, 2026 · RDMA/mlx5: Release the HW‑provided UAR index rather than the SW one
    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 Linux0b08baeccdcf52fad328ad645f5b4fbee04eea34Vendor (CNA)
Linux Linux216336418c007c4b44c650acf2fd3d2de5bb81e8Vendor (CNA)
Linux Linux7f02e9064b6f84e7f93c72f134306271eb4f7de4Vendor (CNA)
Linux Linux8cbf24714d6b3f553fc959632c9781176a73a9a7Vendor (CNA)
Linux Linux9131e4b023e0db5764680034bdc94aeae0b0f33dVendor (CNA)
Linux Linuxbc464a6a9e352daa17b1636c090cf3185710b9a0Vendor (CNA)
Linux Linuxd8961b5c7889b6ecc00f1409d36826df1665df27Vendor (CNA)
debian:linux6.1.180-1 · 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)

—

CVSS vector

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

nvd-secondary

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records