CVE-2020-1459
Status: ModifiedMedium (5.5)—
Severity5.5Medium · CVSS 3.1
Exploitation probability4.47 %higher than 91% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found
An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. The security update addresses the vulnerability by bypassing the speculative execution.
CVSS
- Base score
- 5.5
- Version
- 3.1
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 4.47 %
- Percentile among all scored CVEs
- 91
- Score date
- 10/20/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-203
References
Raw JSON (NVD)
Show
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"published": "2020-08-17T19:15:14.803",
"references": [
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1459",
"tags": [
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"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1459",
"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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"vulnStatus": "Modified",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-203"
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"descriptions": [
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"value": "An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation."\nTo exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application.\nThe security update addresses the vulnerability by bypassing the speculative execution."
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de divulgación de información en las implementaciones de ARM que usan la ejecución especulativa en el flujo de control por medio de un análisis de canal lateral, también se conoce como especulación \"straight-line, también se conoce como \"Windows ARM Information Disclosure Vulnerability\"."
}
],
"lastModified": "2026-06-17T03:01:27.630",
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