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CVE-2017-16837

25
FAUCET Score

CVE-2017-16837 describes a critical vulnerability in Trusted Boot (tboot) versions through 1.9.6, where unvalidated function pointers allow local users to execute arbitrary code. This flaw enables attackers to overwrite dynamic Platform Configuration Registers (PCRs) of the Trusted Platform Module (TPM), compromising system integrity. With a CVSS score of 7.8 (High), it has a low attack complexity and requires local access, but can lead to high impact across confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
1.9.6CPE matchmatch criteria
cpe:2.3:a:trusted_boot_project:trusted_boot:1.9.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 74th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: tboot
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: tboot

Vendor Advisories (1)

redhatCVE-2017-16837Moderate

tboot: Incorrect validation of certain function pointers

Nov 13, 2017

References

sourceforge.net / p/tboot/code/ci/521c58e51eb5be105a29983742850e72c44ed80e
Issue TrackingPatchThird Party Advisory
usenix.org / conference/usenixsecurity18/presentation/han