CVE-2024-0762 json
Potential buffer overflow when handling UEFI variables
published 2024-05-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-16550
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Phoenix SecureCore™ for Intel Kaby Lake 4.0.1.998
- Phoenix SecureCore™ for Intel Coffee Lake 4.1.0.562
- Phoenix SecureCore™ for Intel Ice Lake 4.2.0.323
- Phoenix SecureCore™ for Intel Comet Lake 4.2.1.287
- Phoenix SecureCore™ for Intel Tiger Lake 4.3.0.236
- Phoenix SecureCore™ for Intel Jasper Lake 4.3.1.184
- Phoenix SecureCore™ for Intel Alder Lake 4.4.0.269
- Phoenix SecureCore™ for Intel Raptor Lake 4.5.0.218
- Phoenix SecureCore™ for Intel Meteor Lake 4.5.1.15
- phoenix securecore_technology 4.0.1.998, 4.1.0.562, 4.2.0.323, 4.2.1.287, 4.3.0.236, 4.3.1.184, 4.4.0.269, 4.5.0.218, 4.5.1.15
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- eclypsium.com https://eclypsium.com/blog/ueficanhazbufferoverflow-widespread-impact-from-vulnerability-in-popular-pc-and-server-firmware/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Phoenix SecureCore™ for Intel Kaby Lake
- Phoenix SecureCore™ for Intel Coffee Lake
- Phoenix SecureCore™ for Intel Ice Lake
- Phoenix SecureCore™ for Intel Comet Lake
- Phoenix SecureCore™ for Intel Tiger Lake
- Phoenix SecureCore™ for Intel Jasper Lake
- Phoenix SecureCore™ for Intel Alder Lake
- Phoenix SecureCore™ for Intel Raptor Lake
- Phoenix SecureCore™ for Intel Meteor Lake
- phoenix securecore_technology
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
eclypsium.com
/blog/ueficanhazbufferoverflow-widespread-impact-from-vulnerability-in-popular-pc-and-server-firmware/
exploit, mitigation, third-party-advisory
-
phoenixtech.com
/phoenix-security-notifications/CVE-2024-0762/
vendor-advisory
-
news.ycombinator.com
/item?id=40747852
issue-tracking
-
phoenix.com
/security-notifications/cve-2024-0762/
not-applicable
Sources
- CVE List CVE-2024-0762
- NVD CVE-2024-0762
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.