schreibfaul1 ESP32-audioI2S 3.4.5 has a heap-based buffer overflow vulnerability in the host parsing logic. The dismantle_host() function parses untrusted host and URL input, and subsequent code uses clone_from() to copy parsed host, request host, extension and query_string segments into fixed heap buffers without boundary checking.
This CVE has been withdrawn by MITRE
MITRE marked CVE-2026-51268 as REJECTED on . It is no longer considered a valid vulnerability record. The original content below is preserved for historical reference only.
Reason given by MITRE
DO NOT USE THIS CVE RECORD. ConsultIDs: none. Reason: This record was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none.
CVE-2026-51268
✕ Withdrawn — historical dataCRITICALPre-NVD 9.8
9.8CVSS
- CVSS v3
- 9.8
- EchelonGraph score
- Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
- EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- —Not applicable: this CVE ID was withdrawn
Published
July 28, 2026
Last Modified
July 30, 2026
Frequently asked(4)
What is CVE-2026-51268?
CVE-2026-51268 is a rejected CVE ID: its record was withdrawn on July 31, 2026 and no longer describes a vulnerability. Reason given: DO NOT USE THIS CVE RECORD. ConsultIDs: none. Reason: This record was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none.
When was the CVE record for CVE-2026-51268 published?
The CVE record for CVE-2026-51268 was published on July 28, 2026. EchelonGraph's copy of the record carries a last-modified date of July 30, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-51268?
CVE-2026-51268 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51268?
There is nothing to remediate under CVE-2026-51268: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability.