CYBERSECURITYTRACKER
Vulnerabilities

CVE-2020-0796

Microsoft SMBv3: Improper Restriction of Operations within Memory Bounds

What it is

Reported

A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.

Source reported · Source: NVD · Complete source description.
Dates
Source last published: · Source last updated:

What is affected

Reported

Microsoft; SMBv3. Product-level identification only; no affected-version conclusion is available from this field.

Source reported · Source: NVD
Dates
Source last published: · Source last updated:

Urgency and basis

Tracker computed

Act now

Current priority score and EPSS: loading from the tracker record. They are read when this page loads and are not shown without JavaScript. They change daily and are not part of "Source last updated".

Tracker decision tier from the evidence detailed below
Dates
Source last updated:

Exploitation evidence

Reported

Active exploitation · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog

Source reported
Dates
Active since: · CISA KEV added: · VulnCheck KEV added: · ENISA added: · Source last updated:

What to do

Reported

Apply updates per vendor instructions.

Source remediation ↗
Source reported · Tracked source remediation field
Dates
Source last updated:

Detection and validation

Mapped metadata availability only. These signals do not change priority.

  • Sigma

    Not mapped by tracked sources.

  • Atomic

    Not mapped by tracked sources.

  • Nuclei

    Microsoft SMBv3 - Remote Code Execution. Check identifier: CVE-2020-0796.

    Open Nuclei metadata

  • Metasploit

    exploit/windows/local/cve_2020_0796_smbghost. Rank: Good.

    Open Metasploit metadata

Evidence detail

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Glossary

Open in glossary