CVE-2022-46487

Name: CVE-2022-46487
Creator: NVD / NIST
Published: 2023-12-30T03:15:08.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2022-46487 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Improper initialization of x87 and SSE floating-point configuration registers in the __scone_entry component of SCONE before 5.8.0 for Intel SGX allows a local attacker to compromise the execution integrity of floating-point operations in an enclave or access sensitive information via side-channel analysis.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

Improper initialization of x87 and SSE floating-point configuration registers in the __scone_entry component of SCONE before 5.8.0 for Intel SGX allows a local attacker to compromise the execution integrity of floating-point operations in an enclave or access sensitive information via side-channel analysis.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.60%

44.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Scontain	Scone	< 5.8.0

References

https://jovanbulck.github.io/files/acsac20-fpu.pdfExploit, Third Party Advisory
https://jovanbulck.github.io/files/oakland24-pandora.pdfExploit, Third Party Advisory
https://nvd.nist.gov/vuln/detail/CVE-2020-0561#vulnCurrentDescriptionTitleThird Party Advisory, US Government Resource
https://nvd.nist.gov/vuln/detail/CVE-2020-15107Third Party Advisory, US Government Resource
https://sconedocs.github.io/release5.7/Release Notes
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/best-practices/data-operand-independent-timing-isa-guidance.html#inpage-nav-3-3Technical Description
https://jovanbulck.github.io/files/acsac20-fpu.pdfExploit, Third Party Advisory
https://jovanbulck.github.io/files/oakland24-pandora.pdfExploit, Third Party Advisory
https://nvd.nist.gov/vuln/detail/CVE-2020-0561#vulnCurrentDescriptionTitleThird Party Advisory, US Government Resource
https://nvd.nist.gov/vuln/detail/CVE-2020-15107Third Party Advisory, US Government Resource
https://sconedocs.github.io/release5.7/Release Notes
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/best-practices/data-operand-independent-timing-isa-guidance.html#inpage-nav-3-3Technical Description

Timeline

Published: Dec 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-46487?

How severe is CVE-2022-46487?

CVE-2022-46487 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2022-46487?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-46487?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST