CVE-2023-1018 | TPM2.0 vulnerable to out-of-bounds read

An out-of-bounds read vulnerability exists in TPM2.0's Module Library allowing a 2-byte read past the end of a TPM2.0 command in the CryptParameterDecryption routine. An attacker who can successfully exploit this vulnerability can read or access sensitive data stored in the TPM.

Published: 2023-02-28 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-1018 is rated Moderate Risk (59.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.55%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.92% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

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-2023-1018

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 2026-06-15 0.63% 5.55% +4.92%
2 2026-04-28 0.73% 0.63% -0.10%
3 2026-04-22 — 0.73% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-1018

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-1018

OS Trackers for CVE-2023-1018

vendor priority summary link
debian not yet assigned CVE-2023-1018 not yet assigned priority: Debian including 1 source packages (libtpms), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2023-1018
redhat medium — https://access.redhat.com/security/cve/CVE-2023-1018
suse medium CVE-2023-1018 severity moderate: SUSE including 133 source package names (0.58.0.20.141:libtpms0-0.8.2-150300.3.9.1, hivex-1.3.18-23.module+el8.8.0+16781+9f4724c2, …), 165 product×package rows across 29 product lines (Container suse/sles/15.5/virt-launcher, SUSE Enterprise Storage 7.1, … (29 product lines)): Fixed 165. https://www.suse.com/security/cve/CVE-2023-1018/
ubuntu medium CVE-2023-1018 medium priority: Ubuntu including 1 source packages (libtpms), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): released 3, DNE 2, ignored 2. https://ubuntu.com/security/CVE-2023-1018

Affected software / configurations for CVE-2023-1018

Vendor Product Version Raw CPE
trustedcomputinggroup trusted_platform_module 2.0 cpe:2.3:a:trustedcomputinggroup:trusted_platform_module:2.0:revision_1.16:*:*:*:*:*:*
trustedcomputinggroup trusted_platform_module 2.0 cpe:2.3:a:trustedcomputinggroup:trusted_platform_module:2.0:revision_1.38:*:*:*:*:*:*
trustedcomputinggroup trusted_platform_module 2.0 cpe:2.3:a:trustedcomputinggroup:trusted_platform_module:2.0:revision_1.59:*:*:*:*:*:*
microsoft windows_10_1507 < 10.0.10240.19805 cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
microsoft windows_10_1607 < 10.0.14393.5786 cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
microsoft windows_10_1809 < 10.0.17763.4131 cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft windows_10_20h2 < 10.0.19042.2728 cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:x64:*
microsoft windows_10_21h2 < 10.0.19044.2728 cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
microsoft windows_10_22h2 < 10.0.19045.2728 cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
microsoft windows_11_21h2 < 10.0.22000.1696 cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:x64:*
microsoft windows_11_22h2 < 10.0.22621.1413 cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*
microsoft windows_server_2016 < 10.0.14393.5786 cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft windows_server_2019 < 10.0.17763.4131 cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft windows_server_2022 < 10.0.20348.1607 cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*

References for CVE-2023-1018

cvelogic Threat Intelligence