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CVE detail

CVE-2018-3646

Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.

CVSS 5.6 · MediumBuzz score 31.0

Buzz score

Why this CVE is surfacing

Buzz score total 31.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 23.0 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
23.0
9 evidence mentions in the snapshot
Diversity score
8.0
3 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
9 source links · newest first
  • In January 2018, the entire computer industry was put on alert by two new processor vulnerabilities dubbed Meltdown and Spectre that defeated the fundamental OS security boundaries separating kernel and user space memory. The flaws stemmed from a performance feature of modern CPUs known as speculative execution and mitigating them required one of the biggest patch coordination […]

    newswww.csoonline.comJul 15, 2024, 5:59 AM
  • The Spectre and Meltdown vulnerabilities discovered in January 2018 showed that weaknesses in CPUs were a potential attack vector. They allow a rogue process to read memory without authorization. Patches were rolled out along with bios updates from the manufacturer, but they came with a costly side effect: They degraded performance, especially on systems with […]

    newswww.csoonline.comMay 29, 2019, 10:00 AM
  • In January 2018, security news media was abuzz over a new class of vulnerability called side channel vulnerabilities. Spectre, Meltdown and Foreshadow are some of the best known. They exploit weaknesses in speculative execution in microprocessors to leak unauthorized information. Side channel vulnerabilities allow attackers to bypass account permissions, virtualization boundaries and protected memory regions. […]

    newswww.csoonline.comFeb 20, 2019, 11:00 AM
  • Siemens informed customers this week that many of its products are affected by the recently disclosed processor vulnerabilities known as Foreshadow and L1 Terminal Fault (L1TF).

    newswww.securityweek.comOct 10, 2018, 10:36 AM
  • Microsoft this week made available another round of microcode updates created by Intel for mitigating the recently disclosed speculative execution vulnerabilities tracked as Foreshadow and L1 Terminal Fault (L1TF) .

    newswww.securityweek.comAug 23, 2018, 5:56 AM
  • Researchers and several major tech companies this week disclosed the details of three new speculative execution side-channel vulnerabilities affecting Intel processors.

    newswww.securityweek.comAug 17, 2018, 4:28 PM
  • Foreshadow Attacks – Security researchers disclosed the details of three new speculative execution side-channel attacks that affect Intel processors. The new flaws, dubbed Foreshadow and L1 Terminal Fault (L1TF), were discovered by two independent research teams. An attacker could exploit the Foreshadow vulnerabilities attacks to gain access to the sensitive data stored in a computer’s memory or third-party clouds. […]

    newssecurityaffairs.comAug 15, 2018, 3:32 PM
  • The details of three new speculative execution vulnerabilities affecting Intel Xeon and Core processors were disclosed on Tuesday. The flaws have been dubbed Foreshadow and L1 Terminal Fault (L1TF) , and patches and mitigations are already available.

    newswww.securityweek.comAug 15, 2018, 12:47 PM
  • Researchers and several major tech companies on Tuesday disclosed the details of three new speculative execution side-channel vulnerabilities affecting Intel processors.

    newswww.securityweek.comAug 14, 2018, 8:44 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

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