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NVD / CVE Program· CNA Linux

CVE-2026-74505: ALSA: 6fire: Fix UAF at error handling during probe

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 11e2953d9f4c7c3d2af94a889c2d805c537d633f, 2de734dcbb210bd59983e13d36988acbcc122194, 49bc7741cd2761c703a292dc69245041ae8a67bd.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 11e2953d9f4c7c3d2af94a889c2d805c537d633f, 2de734dcbb210bd59983e13d36988acbcc122194, 49bc7741cd2761c703a292dc69245041ae8a67bd 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: 6fire: Fix UAF at error handling during probe Although 6fire driver had a few fixes for dealing with the early error handling during the probe phase, it forgot a pending URB before freeing the resources, which may lead to a UAF. This patch addresses it by doing the almost same cleanup procedure like the normal disconnect phase at the error path.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 19, 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

If any of these changes, we'll tell you in the daily email digest.

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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

    • 2.6.39affected
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before d41bfea14ee6e063a953f6e72046088737c4e66caffected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before 8b7ecb2446845fa8d1f1ce9aac6307caac50cfd5affected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before a0bb5b9d39e54888385dc399c899223299201fe6affected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before 49bc7741cd2761c703a292dc69245041ae8a67bdaffected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before 2de734dcbb210bd59983e13d36988acbcc122194affected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before 11e2953d9f4c7c3d2af94a889c2d805c537d633faffected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before 630c8d6a93cbd9b2a207f1a67ef1fd21af098b0caffected · git
    • c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 and later · before a54bf16965f896415c3337bc4fbb40fb11941d99affected · git
    • before 2.6.39not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.8-17.1.8-1

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-2026-74502Aug 15, 2026 · ALSA: ump: fix double free of out_cvts on rawmidi error
    0Monitor
  • ← EarlierCVE-2026-74504Aug 15, 2026 · ALSA: seq: Fix division by zero in initialize_timer()
    0Monitor
  • Later →CVE-2026-74514Aug 15, 2026 · KVM: s390: pci: Fix memory accounting for pinned/unpinned pages
    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 Linux11e2953d9f4c7c3d2af94a889c2d805c537d633fVendor (CNA)
Linux Linux2de734dcbb210bd59983e13d36988acbcc122194Vendor (CNA)
Linux Linux49bc7741cd2761c703a292dc69245041ae8a67bdVendor (CNA)
Linux Linux630c8d6a93cbd9b2a207f1a67ef1fd21af098b0cVendor (CNA)
Linux Linux8b7ecb2446845fa8d1f1ce9aac6307caac50cfd5Vendor (CNA)
Linux Linuxa0bb5b9d39e54888385dc399c899223299201fe6Vendor (CNA)
Linux Linuxa54bf16965f896415c3337bc4fbb40fb11941d99Vendor (CNA)
Linux Linuxd41bfea14ee6e063a953f6e72046088737c4e66cVendor (CNA)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.107-1~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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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✗ → ✓

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

References

Show all references (7 more)

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

All records