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NVD / CVE Program· CNA Linux

CVE-2026-64486: ALSA: cmipci: check snd_ctl_new1() return value

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 4dd5b0b1a52a8d6e59a3f217204817228ce0238b, 6.1.178, 6.4.

Low priority for now. Upgrade to Linux Linux 4dd5b0b1a52a8d6e59a3f217204817228ce0238b, 6.1.178, 6.4 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: ALSA: cmipci: check snd_ctl_new1() return value snd_ctl_new1() can return NULL when memory allocation fails. snd_cmipci_spdif_controls() does not check the return value before dereferencing kctl->id.device, which can lead to a NULL pointer dereference. Add NULL checks after snd_ctl_new1() calls and return -ENOMEM if any fails.

—No exploit Fix available
Published
Jul 25, 2026
Updated
Nov 3, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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

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Follow CVE-2026-64486

When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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

    • 7bf12707fa3db4c14fbe8ab93efb421d8ca93bf8, 6.4affected
    • 3454490e0396191f8f9c215fccf5deef76abffb5 and later · before b44888c33c4f11277d0e5e023338f2740232a4edaffected · git
    • f2f312ad88c68a7f4a7789b9269ae33af3c7c7e9 and later · before 8825a06bfa7932a7a74dec01669d405df0b47286affected · git
    • f2f312ad88c68a7f4a7789b9269ae33af3c7c7e9 and later · before 4dd5b0b1a52a8d6e59a3f217204817228ce0238baffected · git
    • f2f312ad88c68a7f4a7789b9269ae33af3c7c7e9 and later · before af2b009b773bc42995546507963e5e78970dc3edaffected · git
    • f2f312ad88c68a7f4a7789b9269ae33af3c7c7e9 and later · before 67e9ea92cd598cba1783ff701553c776a6cedee9affected · git
    • f2f312ad88c68a7f4a7789b9269ae33af3c7c7e9 and later · before c205bd1b28fb7e5f1061a4e78813fad7d315cb3eaffected · git
    • 6.1.34 and later · before 6.1.178affected · semver
    • 6.3.8 and later · before 6.4affected · semver
    • before 6.4not 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:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.96-16.12.96-1
Debian:14linuxbefore 7.1.4-17.1.4-1

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-2026-64484Jul 25, 2026 · ALSA: es1938: check snd_ctl_new1() return value
    0Monitor
  • ← EarlierCVE-2026-64485Jul 25, 2026 · ALSA: compress: Fix task creation error unwind
    31Monitor
  • Later →CVE-2026-64487Jul 25, 2026 · ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser
    0Monitor

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 Linux4dd5b0b1a52a8d6e59a3f217204817228ce0238bVendor (CNA)
Linux Linux6.1.178Vendor (CNA)
Linux Linux6.4Vendor (CNA)
Linux Linux67e9ea92cd598cba1783ff701553c776a6cedee9Vendor (CNA)
Linux Linux8825a06bfa7932a7a74dec01669d405df0b47286Vendor (CNA)
Linux Linuxaf2b009b773bc42995546507963e5e78970dc3edVendor (CNA)
Linux Linuxb44888c33c4f11277d0e5e023338f2740232a4edVendor (CNA)
Linux Linuxc205bd1b28fb7e5f1061a4e78813fad7d315cb3eVendor (CNA)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~deb12u1 · 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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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✗ → ✓

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References

Show all references (5 more)

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

All records