Page generated: 08 Nov 2026, 07:20 UTC
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CVE-2017-7494

SambaCry

Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.

CVSS 9.8 (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 9.8: +1.47
  • Fresh EPSS: 99.45%: +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: 16 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

www.trendmicro.com
Press · 02 Feb 2022, 08:00 · The Samba Vulnerability: What is CVE-2021-44142 and How to Fix It - www.trendmicro.com
BleepingComputer
Press · 31 Jan 2022, 08:00 · 277,000 routers exposed to Eternal Silence attacks via UPnP - BleepingComputer
BleepingComputer
Press · 26 Jul 2017, 07:00 · Newly Discovered CowerSnail Backdoor Targets Windows Computers - BleepingComputer
Securelist
Press · 25 Jul 2017, 07:00 · CowerSnail, from the creators of SambaCry - Securelist
The Hacker News
Press · 19 Jul 2017, 07:00 · New Linux Malware Exploits SambaCry Flaw to Silently Backdoor NAS Devices - The Hacker News
See all 16 source documents
BleepingComputer
Press · 18 Jul 2017, 07:00 · SambaCry Vulnerability Used to Deploy Backdoors on NAS Devices - BleepingComputer
The Hacker News
Press · 10 Jun 2017, 07:00 · Warning! Hackers Started Using "SambaCry Flaw" to Hack Linux Systems - The Hacker News
Securelist
Press · 09 Jun 2017, 07:00 · SambaCry is coming - Securelist
Rapid7
Press · 02 Jun 2017, 07:00 · Metasploit Wrapup 6/2/17 - Rapid7
TechTarget
Press · 26 May 2017, 07:00 · Samba vulnerability brings WannaCry fears to Linux/Unix - TechTarget
TechTarget
Press · 26 May 2017, 07:00 · Samba vulnerability brings WannaCry fears to Linux/Unix - TechTarget
Qualys
Press · 26 May 2017, 07:00 · Samba Vulnerability CVE-2017-7494 - Qualys
BleepingComputer
Press · 25 May 2017, 07:00 · Over 104,000 Samba Installations Vulnerable to Remote Takeover Attacks - BleepingComputer
Rapid7
Press · 25 May 2017, 07:00 · Samba CVE-2017-7494: Scanning & Remediating in InsightVM & Nexpose - Rapid7
The Hacker News
Press · 25 May 2017, 07:00 · 7-Year-Old Samba Flaw Lets Hackers Access Thousands of Linux PCs Remotely - The Hacker News
Akamai
Press · 25 Mar 2017, 07:00 · SambaCry, the Seven Year Old Samba Vulnerability, is the Next Big Threat (for now) - Akamai

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

3

Public exploit entries / repo candidates

See 3 repos with metrics
RepositoryStarsForksLanguageUpdated
YonLiud/CVE-2017-749420Python15 Aug 2026, 12:46
adjaliya/-CVE-2017-7494-Samba-Exploit-POC00—29 Sep 2021, 20:35
incredible1yu/CVE-2017-749400C10 May 2018, 08:29
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 9.8; EPSS 99.4%
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 13:57:53.595498+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
25 Mar 2017, 07:00
Published
30 May 2017, 18:00
Latest press mention
02 Feb 2022, 08:00
Added to the CISA KEV catalog
30 Mar 2023, 00:00
Score calculated
05 Nov 2026, 13:57
Name
SambaCry
PoCs on GitHub
3 repositories