CVE•Published 2026-07-28•Modified 2026-07-28•1 article on news•3 live references•NVD data
CVE-2026-51259
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
Description
Unchecked unsigned integer overflow in buffer size calculation in schreibfaul1 ESP32-audioI2S 3.4.5 leads to undersized PSRAM buffer allocation. Subsequent normal audio buffer read and write operations cause heap out-of-bounds access, memory corruption, denial of service, and potential code execution.
Timeline
Published 2026-07-28
Modified 2026-07-28
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). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-51259Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-51259Censys host search filtered to this CVE id.
grep.app
CVE-2026-51259Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-51259GitHub code search for direct mentions.
Google dork
"CVE-2026-51259" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-51259 on GitHub.