What’s Vulnerable › Vulnerabilities

CVE-2022-46487

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-12-30 · updated 2026-06-17
• Weakness: CWE-665

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.

Affected products

• Scontain Scone: before 5.8.0 — fixed in 5.8.0

How to fix

Upgrade to a fixed version: Scontain Scone 5.8.0. Check the vendor advisory for mitigations.

References

• https://jovanbulck.github.io/files/acsac20-fpu.pdf
• https://jovanbulck.github.io/files/oakland24-pandora.pdf
• https://nvd.nist.gov/vuln/detail/CVE-2020-0561#vulnCurrentDescriptionTitle
• https://nvd.nist.gov/vuln/detail/CVE-2020-15107
• https://sconedocs.github.io/release5.7/
• 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-3-3
• https://jovanbulck.github.io/files/acsac20-fpu.pdf
• https://jovanbulck.github.io/files/oakland24-pandora.pdf
• https://nvd.nist.gov/vuln/detail/CVE-2020-0561#vulnCurrentDescriptionTitle
• https://nvd.nist.gov/vuln/detail/CVE-2020-15107
• https://sconedocs.github.io/release5.7/
• 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-3-3

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