CVE•Published 2026-06-22•Modified 2026-06-22•0 articles on news•5 live references•NVD data
CVE-2026-56109
Vulnerability data via NVD (ingested)
CVSS v3.1
6.8
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS percentile
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Weaknesses (CWE)
Description
The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_def() in src/conf.c that allows attackers to corrupt memory by supplying maliciously crafted ALSA configuration text. When parsing nested compound or array configuration blocks, parse_def() fails to check return values before continuing, causing snd_config_delete() to be called twice on the same already-freed node, resulting in a NULL-pointer write or invalid memory read.
Timeline
Published 2026-06-22
Modified 2026-06-22
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-56109Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-56109Censys host search filtered to this CVE id.
grep.app
CVE-2026-56109Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-56109GitHub code search for direct mentions.
Google dork
"CVE-2026-56109" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-56109 on GitHub.
We haven't classified any articles referencing CVE-2026-56109 yet. The external references above still apply.