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Fencer Vulns
medium 6.0

CVE-2023-47855 json

Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a privileged user to potentially enab…

published 2024-05-16 2 y ago modified 2026-08-31 2 mo ago also EUVD-2023-51950

cvss
6.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

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.

Patch / fix

  • intel trust_domain_extensions_module 1.5.05.46.698
  • intel-microcode Debian 12 3.20240514.1~deb12u1
  • intel-microcode Debian 14, Debian 13 3.20240514.1

debian advisories DEBIAN-CVE-2023-47855

  • intel-microcode Ubuntu 20.04 LTS 3.20240514.0ubuntu0.20.04.1
  • intel-microcode Ubuntu 22.04 LTS 3.20240514.0ubuntu0.22.04.1
  • intel-microcode Ubuntu 24.04 LTS 3.20240514.0ubuntu0.24.04.1
  • intel-microcode Ubuntu Pro 16.04 LTS 3.20240514.0ubuntu0.16.04.1+esm1
  • intel-microcode Ubuntu Pro 18.04 LTS 3.20240514.0ubuntu0.18.04.1+esm1

ubuntu advisories UBUNTU-CVE-2023-47855

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ucode-intel Linux Micro 6.0 20240813-1.1
  • ucode-intel SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +21 more 20240514-150200.41.1
  • ucode-intel SLES for SAP 12 SP5, SLES 12 SP5 20240514-137.1
  • microcode_ctl SLES 11 SP4 LTSS EXTREME CORE 1.17-102.83.81.1

suse advisories SUSE-SU-2025:1032-1SUSE-SU-2025:20020-1SUSE-SU-2024:1771-1SUSE-SU-2024:1684-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-47855 updated cvss 6.0

intel-microcode: Improper input validation in some Intel® TDX module software

  • Red Hat Enterprise Linux 6 microcode_ctl Red Hat Enterprise Linux 7 microcode_ctl
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 microcode_ctl Red Hat Enterprise Linux 9 microcode_ctl Red Hat Enterprise Linux 10 microcode_ctl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • n/a Intel(R) TDX module software
  • intel trust_domain_extensions_module

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.