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CVE-2020-1267

MEDIUMCVSS 4.9/10EPSS 4.53%

Last modified

CVE-2020-1267 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. This security update corrects a denial of service in the Local Security Authority Subsystem Service (LSASS) caused when an authenticated attacker sends a specially crafted authentication request, aka 'Local Security Authority Subsystem Service Denial of Service Vulnerability'.. EPSS estimates a 4.53% chance of exploitation in the next 30 days.

Description

This security update corrects a denial of service in the Local Security Authority Subsystem Service (LSASS) caused when an authenticated attacker sends a specially crafted authentication request, aka 'Local Security Authority Subsystem Service Denial of Service Vulnerability'.

Metrics

CVSS 3.1
4.9/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
4.53%

90.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows 10All versions—
MicrosoftWindows 101607—
MicrosoftWindows 101709—
MicrosoftWindows 101803—
MicrosoftWindows 101809—
MicrosoftWindows 101903—
MicrosoftWindows 101909—
MicrosoftWindows 102004—
MicrosoftWindows 7All versionsSp1
MicrosoftWindows 8.1All versions—
MicrosoftWindows Rt 8.1All versions—
MicrosoftWindows Server 2008All versionsSp2
MicrosoftWindows Server 2008r2Sp1
MicrosoftWindows Server 2012All versions—
MicrosoftWindows Server 2012r2—
MicrosoftWindows Server 2016All versions—
MicrosoftWindows Server 20161903—
MicrosoftWindows Server 20161909—
MicrosoftWindows Server 20162004—
MicrosoftWindows Server 2019All versions—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-1267?
This security update corrects a denial of service in the Local Security Authority Subsystem Service (LSASS) caused when an authenticated attacker sends a specially crafted authentication request, aka 'Local Security Authority Subsystem Service Denial of Service Vulnerability'.
How severe is CVE-2020-1267?
CVE-2020-1267 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 4.53% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1267?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1267?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST