Disclosure summary
A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.
Source-reported weakness categories
CWE-909, CWE-20
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2021-3655
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| linux | linux_kernel | * {"versionEndExcluding":"5.14"} |
| linux | linux_kernel | 5.14 |
| redhat | enterprise_linux | 8.0 |
| debian | debian_linux | 9.0 |
Original records & references
- NIST NVD record
- CVE Program record
- bugzilla.redhat.com — Issue Tracking, Patch, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- bugzilla.redhat.com — Issue Tracking, Patch, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
PUBLISHED 2021-08-05T17:15:13-04:00
MODIFIED 2026-10-08T17:17:40-04:00
INGESTED 2026-10-10T20:50:20-04:00