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CVE-2020-0796

A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.

CVSS 10.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
9.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 10: +1.50
  • Fresh EPSS: 99.81%: +0.50

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 18 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Rapid7
Press · 28 May 2021, 07:00 · Metasploit Wrap-Up: May 28, 2021 - Rapid7
CCB Belgium
Press · 10 Jun 2020, 07:00 · Remote Code Execution SMBGhost for Microsoft SMBv3 now being chained with SMBleed - CCB Belgium
The Hacker News
Press · 09 Jun 2020, 07:00 · SMBleed: A New Critical Vulnerability Affects Windows SMB Protocol - The Hacker News
Help Net Security
Press · 08 Jun 2020, 07:00 · PoC RCE exploit for SMBGhost Windows flaw released - Help Net Security
gHacks
Press · 14 Apr 2020, 07:00 · Microsoft Windows Security Updates April 2020 overview - gHacks
See all 18 source documents
Bitdefender
Press · 02 Apr 2020, 07:00 · Hypervisor Introspection blocks EternalDarkness/SMBGhost Privilege Escalation Exploit (CVE-2020-0796) - Bitdefender
Security Affairs
Press · 01 Apr 2020, 07:00 · Experts published PoC exploits for CVE-2020-0796 privilege escalation flaw on Windows - Security Affairs
Bitdefender
Press · 17 Mar 2020, 07:00 · Bitdefender blocks CVE-2020-0796 ‘EternalDarkness Bug’ at Network Level - Bitdefender
McAfee
Press · 12 Mar 2020, 07:00 · SMBGhost – Analysis of CVE-2020-0796 - McAfee
Sophos
Press · 12 Mar 2020, 07:00 · Patch now! Microsoft releases fixes for the serious SMB bug CVE-2020-0796 - Sophos
BleepingComputer
Press · 12 Mar 2020, 07:00 · 48K Windows Hosts Vulnerable to SMBGhost CVE-2020-0796 RCE Attacks - BleepingComputer
Rapid7
Press · 12 Mar 2020, 07:00 · CVE-2020-0796: Microsoft SMBv3 RCE Vulnerability Analysis - Rapid7
Qualys
Press · 12 Mar 2020, 07:00 · Microsoft Windows SMBv3 Remote Code Execution Vulnerability (CVE-2020-0796) - Qualys
Kaspersky
Press · 11 Mar 2020, 07:00 · CVE-2020-0796: New vulnerability in SMB protocol - Kaspersky
Qualys
Press · 11 Mar 2020, 07:00 · Automatically Discover, Prioritize and Remediate Microsoft SMBv3 RCE Vulnerability (CVE-2020-0796) using Qualys VMDR - Qualys
Unit 42
Press · 11 Mar 2020, 07:00 · Threat Brief: Microsoft SMBv3 Wormable Vulnerability CVE-2020-0796 - Unit 42
Ars Technica
Press · 11 Mar 2020, 07:00 · Windows has a new wormable vulnerability, and there’s no patch in sight - Ars Technica
CCB Belgium
Press · 11 Mar 2020, 07:00 · Remote Code Execution Vulnerability in Microsoft Server Message Block SMBv3 - CCB Belgium

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 9.0 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

18

Public exploit entries / repo candidates

See 18 repos with metrics
RepositoryStarsForksLanguageUpdated
danigargu/CVE-2020-07961,358338C07 Dec 2020, 20:04
jamf/CVE-2020-0796-RCE-POC569171Python09 Jun 2020, 20:46
eerykitty/CVE-2020-0796-PoC332119Python26 Feb 2023, 07:01
jamf/CVE-2020-0796-LPE-POC24485Python02 Apr 2020, 08:01
psc4re/NSE-scripts16227Lua16 Aug 2021, 18:16
maxpl0it/Unauthenticated-CVE-2020-0796-PoC228Python15 Mar 2020, 22:20
0x25bit/CVE-2020-0796-PoC184—01 Apr 2020, 19:34
thelostworldFree/CVE-2020-07961118—05 Jun 2020, 16:21
dungnm24/CVE-2020-079664C#29 May 2023, 06:37
orangmuda/CVE-2020-079651Assembly01 Nov 2021, 19:36
vysecurity/CVE-2020-079652—13 Mar 2020, 08:35
cory-zajicek/CVE-2020-0796-DoS12Python24 Mar 2020, 05:52
ran-sama/CVE-2020-079612Python10 Jan 2026, 12:03
AaronCaiii/CVE-2020-0796-POC00Python06 Nov 2020, 05:27
esmwaSpyware/DoS-PoC-for-CVE-2020-0796-SMBGhost-00—06 Aug 2025, 07:06
hungdnvp/POC-CVE-2020-079600—23 Feb 2024, 09:06
Murasame-nc/CVE-2020-0796-LPE-POC00C++09 Oct 2021, 08:24
wsfengfan/CVE-2020-079601—14 Mar 2020, 05:51
Public exploit evidence
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 10; EPSS 99.8%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:12.189153+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
11 Mar 2020, 07:00
Published
12 Mar 2020, 15:48
Latest press mention
28 May 2021, 07:00
Added to the CISA KEV catalog
10 Feb 2022, 00:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
18 repositories