CVE-2024-0762: Phoenixtech Securecore Technology buffer overflow (CVSS 7.5)

Description

Potential buffer overflow in unsafe UEFI variable handling in Phoenix SecureCore™ for select Intel platforms This issue affects: Phoenix SecureCore™ for Intel Kaby Lake: from 4.0.1.1 before 4.0.1.998; Phoenix SecureCore™ for Intel Coffee Lake: from 4.1.0.1 before 4.1.0.562; Phoenix SecureCore™ for Intel Ice Lake: from 4.2.0.1 before 4.2.0.323; Phoenix SecureCore™ for Intel Comet Lake: from 4.2.1.1 before 4.2.1.287; Phoenix SecureCore™ for Intel Tiger Lake: from 4.3.0.1 before 4.3.0.236; Phoenix SecureCore™ for Intel Jasper Lake: from 4.3.1.1 before 4.3.1.184; Phoenix SecureCore™ for Intel Alder Lake: from 4.4.0.1 before 4.4.0.269; Phoenix SecureCore™ for Intel Raptor Lake: from 4.5.0.1 before 4.5.0.218; Phoenix SecureCore™ for Intel Meteor Lake: from 4.5.1.1 before 4.5.1.15.

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityHigh

Privileges requiredHigh

User interactionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Phoenixtech Securecore Technology≥ 4.0.1.1 < 4.0.1.998 · ≥ 4.1.0.1 < 4.1.0.562 · ≥ 4.2.0.1 < 4.2.0.323 · ≥ 4.2.1.1 < 4.2.1.287

Remediation

Fixed in

Phoenixtech Securecore Technology≥ 4.0.1.998

Patch & vendor advisories

https://phoenixtech.com/phoenix-security-notifications/CVE-2024-0762/

References

https://eclypsium.com/blog/ueficanhazbufferoverflow-widespread-impact-from-vulnerability-in-popular-pc-and-server-firmware/ExploitMitigationThird Party Advisory
https://news.ycombinator.com/item?id=40747852Issue Tracking
https://phoenixtech.com/phoenix-security-notifications/CVE-2024-0762/Vendor Advisory
https://www.phoenix.com/security-notifications/cve-2024-0762/Not Applicable

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2024-0762 being actively exploited?

CVE-2024-0762 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.76%.

How severe is CVE-2024-0762?

CVE-2024-0762 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.76% probability of exploitation.

Which products are affected by CVE-2024-0762?

Affected products include Phoenixtech Securecore Technology.

How do I fix CVE-2024-0762?

Upgrade affected software to a fixed version, for example Phoenixtech Securecore Technology 4.0.1.998 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-0762 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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