CVE-2023-45745

Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a privileged user to potentially enable escalation of privilege via local access.

Published: 2024-05-16 Last update: 2025-09-02 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-45745 is rated Low Risk (37.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-45745

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-05 0.03% 0.05% +0.02%
2 2025-06-24 0.07% 0.03% -0.05%
3 2025-06-22 — 0.07% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-45745

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.9 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.5 5.8 [email protected]
8.2 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.5 6.0 [email protected]

Weakness enumeration for CVE-2023-45745

OS Trackers for CVE-2023-45745

vendor priority summary link
alpine — CVE-2023-45745: 1 source package rows (intel-ucode); 7 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2023-45745
debian not yet assigned CVE-2023-45745 not yet assigned priority: Debian including 1 source packages (intel-microcode), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-45745
redhat high — https://access.redhat.com/security/cve/CVE-2023-45745
suse high CVE-2023-45745 severity important: SUSE including 8 source package names (microcode_ctl-1.17-102.83.81.1, ucode-intel-20240514-1.1, …), 55 product×package rows across 55 product lines (Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production, … (55 product lines)): Fixed 55. https://www.suse.com/security/cve/CVE-2023-45745/
ubuntu medium CVE-2023-45745 medium priority: Ubuntu including 1 source packages (intel-microcode), 8 status rows across 8 suites (bionic, focal, jammy, mantic, noble, trusty, upstream, xenial): released 6, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2023-45745

Affected software / configurations for CVE-2023-45745

Vendor Product Version Raw CPE
intel tdx_module < 1.5.05.46.698 cpe:2.3:a:intel:tdx_module:*:*:*:*:*:*:*:*
netapp hci_compute_node_bios — cpe:2.3:o:netapp:hci_compute_node_bios:-:*:*:*:*:*:*:*

References for CVE-2023-45745

cvelogic Threat Intelligence