EUVD-2026-56525
GHSA-jcf3-r8mw-552v
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local vector with low-privilege auth and required user interaction; scope changed to account for subsequent-system confidentiality and availability impacts per CVSS 4.0 SC:L/SA:L.
Primary rating from Vendor (intel).
CVSS VectorVendor: intel
Lifecycle Timeline
1DescriptionCVE.org
Integer overflow in the UEFI firmware for the Intel(R) Slim Bootloader may allow an information disclosure. System software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires active user interaction. The potential vulnerability may impact the confidentiality (low), integrity (none) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (none) and availability (low) impacts.
AnalysisAI
Integer overflow in Intel Slim Bootloader UEFI firmware exposes systems to limited information disclosure and denial of service. Exploitation requires local, authenticated access with active user interaction, yielding only low-impact confidentiality and availability consequences with no integrity impact. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) local system access - remote exploitation is not possible per AV:L; (2) an authenticated session with at least low-privilege credentials (PR:L); and (3) active user interaction with the affected firmware component (UI:A). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is low. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is to review Intel Security Advisory INTEL-SA-01475 at https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01475.html and apply any patched firmware version Intel has released. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Integer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today