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Vulnerability Assessment

Weakness
CWE
CWE-203
ASVS 5.0
V6 - Authentication Timing-safe comparisons
Impact

CVSS score of 7.3 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 1.71%.
Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.7% exploitation probability (EPSS)

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AnalysisAI

Systems with microprocessors utilizing speculative execution and Intel software guard extensions (Intel SGX) may allow unauthorized disclosure of information residing in the L1 data cache from an. Rated high severity (CVSS 7.3), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-203. Systems with microprocessors utilizing speculative execution and Intel software guard extensions (Intel SGX) may allow unauthorized disclosure of information residing in the L1 data cache from an enclave to an attacker with local user access via a side-channel analysis. Affected products include: Intel Core I3, Intel Core I5, Intel Core I7, Intel Xeon E3, Intel Xeon E3 1220 V5.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.3 HIGH
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

DescriptionCVE.org

Systems with microprocessors utilizing speculative execution and Intel software guard extensions (Intel SGX) may allow unauthorized disclosure of information residing in the L1 data cache from an enclave to an attacker with local user access via a side-channel analysis.

Threat Intelligence Overview

EPSS Score
1.7%
Top 17% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 1.7%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:h:intel:core_i3:6006u:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6098p:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6100:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6100e:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6100h:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6100t:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6100te:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6100u:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6102e:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6157u:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6167u:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6300:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6300t:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3:6320:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i5:650:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i5:655k:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i5:660:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i5:661:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i5:670:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i5:680:*:*:*:*:*:*:*
+ 109 more

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Same weakness CWE-203 – Observable Discrepancy

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CVE-2019-25337 CRITICAL POC
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Same technique Authentication Bypass

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CVE-2023-22515 CRITICAL POC
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CVE-2012-4681 CRITICAL POC
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CVE-2013-2465 CRITICAL POC
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CVE-2011-3544 CRITICAL POC
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CVE-2022-40684 CRITICAL POC
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CVE-2024-0012 CRITICAL POC
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References

Advisories & patches
ADVISORY https://software.intel.com/security-software-guidance/software-guidance/l1-terminal-fault ADVISORY https://vuldb.com/vuln/122908 ADVISORY https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00161.html REF http://support.lenovo.com/us/en/solutions/LEN-24163 REF http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en REF http://www.securityfocus.com/bid/105080 REF http://www.securitytracker.com/id/1041451 REF https://cert-portal.siemens.com/productcert/pdf/ssa-254686.pdf REF https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf REF https://foreshadowattack.eu/ REF https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html REF https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0008 REF https://security.netapp.com/advisory/ntap-20180815-0001/ REF https://support.f5.com/csp/article/K35558453 REF https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03874en_us REF https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180814-cpusidechannel REF https://www.kb.cert.org/vuls/id/982149 REF https://www.synology.com/support/security/Synology_SA_18_45

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