CVE-2021-3746
Reported by redhat · Published October 19, 2021
A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| libtpms | libtpms_project | 0.8.5, 0.7.9, 0.6.6 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | libtpms | libtpms 0.8.5, libtpms 0.7.9, libtpms 0.6.6 |
| n/a | libtpms | libtpms 0.8.5, libtpms 0.7.9, libtpms 0.6.6 |
| arch | libtpms | 0 |
Timeline
- Sep 9, 2021 CVE Published
- Oct 20, 2021 EPSS Score (30 in total, the first dated here)
- Apr 4, 2026 Security Advisory (2 in total, the first dated here)
- Jul 27, 2026 Coalition ESS Score
- Sep 20, 2026 CVE Updated
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