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| Vulnerability ID | VCID-x18q-2c1r-x3de |
| Aliases |
CVE-2021-3347
|
| Summary | An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.3 |
| Risk | 3.1 |
| Affected and Fixed Packages | Package Details |
| CWE-416 | Use After Free |
| System | Score | Found at |
|---|---|---|
| cvssv3 | 7.0 | https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-3347.json |
| epss | 0.002 | https://api.first.org/data/v1/epss?cve=CVE-2021-3347 |
| archlinux | Medium | https://security.archlinux.org/AVG-1506 |
| archlinux | Medium | https://security.archlinux.org/AVG-1507 |
| archlinux | Medium | https://security.archlinux.org/AVG-1508 |
| archlinux | Medium | https://security.archlinux.org/AVG-1509 |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.41988 |
| EPSS Score | 0.002 |
| Published At | June 4, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-06-04T16:43:34.162649+00:00 | Debian Importer | Import | https://security-tracker.debian.org/tracker/data/json | 38.6.0 |