VulnerabilityPublished 24 Apr 2026Updated 6 Nov 2026

CVE-2026-31619: Linux kernel · ALSA: fireworks: bound device-supplied status before string array lookup

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f856f4b6efd51be7950e4b84c06cd961961ca41c : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:04 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in f856f4b6efd51be7950e4b84c06cd961961ca41c, e103f98f6615ed2934e9cf340654f0cad9eb8a8a, cc624b3d2be13297100539b64ad950695188e046 +6

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ bde8a8f23bbe6db51fa4e81644273af18fef3d7a, < f856f4b6efd51be7950e4b84c06cd961961ca41c	Fixed in f856f4b6efd51be7950e4b84c06cd961961ca41c
LinuxLinux	Affected ≥ bde8a8f23bbe6db51fa4e81644273af18fef3d7a, < e103f98f6615ed2934e9cf340654f0cad9eb8a8a	Fixed in e103f98f6615ed2934e9cf340654f0cad9eb8a8a
LinuxLinux	Affected ≥ bde8a8f23bbe6db51fa4e81644273af18fef3d7a, < cc624b3d2be13297100539b64ad950695188e046	Fixed in cc624b3d2be13297100539b64ad950695188e046
LinuxLinux	Affected ≥ bde8a8f23bbe6db51fa4e81644273af18fef3d7a, < 07704bbf36f57e4379e4cadf96410dab14621e3b	Fixed in 07704bbf36f57e4379e4cadf96410dab14621e3b
LinuxLinux	Affected ≥ bde8a8f23bbe6db51fa4e81644273af18fef3d7a, < 682d8accf0d83a871e8c327b95c81f53902c922b	Fixed in 682d8accf0d83a871e8c327b95c81f53902c922b
LinuxLinux	Affected ≥ bde8a8f23bbe6db51fa4e81644273af18fef3d7a, < 327f8e730e3c65ec97df9d3b07de66aeb3dc932d	Fixed in 327f8e730e3c65ec97df9d3b07de66aeb3dc932d

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: fireworks: bound device-supplied status before string array lookup The status field in an EFW response is a 32-bit value supplied by the firewire device. efr_status_names[] has 17 entries so a status value outside that range goes off into the weeds when looking at the %s value. Even worse, the status could return EFR_STATUS_INCOMPLETE which is 0x80000000, and is obviously not in that array of potential strings. Fix this up by properly bounding the index against the array size and printing "unknown" if it's not recognized.

References

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