Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can…
Priority LOW 34CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.
Why it matters now
EPSS 0.00413 35th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trusted_boot_project:trusted_boot:1.9.6:*:*:*:*:*:*:* | 1.9.6 | Vulnerable | Trusted Boot Project |
- cpe:2.3:a:trusted_boot_project:trusted_boot:1.9.6:*:*:*:*:*:*:* Versions 1.9.6 Vulnerable ·Trusted Boot Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16837
- 2026-10-03 Alias added: GHSA-86m6-cj8w-2c48
References
More Trusted Boot Project Trusted Boot vulnerabilities
- TI-2014-04189 Trusted Boot (tboot) before 1.8.2 has a 'loader.c' Security Bypass Vulnerability CVSS 3.1MEDIUM 5.5
Sources
- CVE-2017-16837 · CVE Program
- CVE-2017-16837 · NVD
- FIRST EPSS
- GHSA-86m6-cj8w-2c48 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-16837 · Red Hat security data · CC BY 4.0
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