What is the CVSS score of CVE-2016-9639?

CVE-2016-9639 has a CVSS 3.0 base score of 9.1 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.8%.

Is there a patch available for CVE-2016-9639?

Yes, a patch is available for CVE-2016-9639. Update the affected software to the latest version immediately.

Salt CVE-2016-9639

CRITICAL

Improper Access Control (CWE-284)

2017-02-07 cve@mitre.org

Authentication Bypass Salt Saltstack

9.1

CVSS 3.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-284 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Access control enforcement MITRE ATT&CK 1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.1 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.80%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

Patch available 0.8% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Salt before 2015.8.11 allows deleted minions to read or write to minions with the same id, related to caching. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

pypi salt fix: 2015.8.11

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-284. Salt before 2015.8.11 allows deleted minions to read or write to minions with the same id, related to caching. Affected products include: Saltstack Salt. Version information: before 2015.8.11.

Know when Salt gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 9.1 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

DescriptionCVE.org

Salt before 2015.8.11 allows deleted minions to read or write to minions with the same id, related to caching.

Threat Intelligence Overview

EPSS Score

0.8%

Top 26% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 0.8%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +46

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:*

More in Salt

View all

CVE-2021-25281 CRITICAL Emergency POC

9.8 Feb 27

An issue was discovered in through SaltStack Salt before 3002.5. Rated critical severity (CVSS 9.8), this vulnerability

CVE-2020-25592 CRITICAL Emergency POC

9.8 Nov 06

In SaltStack Salt through 3002, salt-netapi improperly validates eauth credentials and tokens. Rated critical severity (

CVE-2020-16846 CRITICAL Emergency POC

9.8 Nov 06

An issue was discovered in SaltStack Salt through 3002. Rated critical severity (CVSS 9.8), this vulnerability is remote

CVE-2020-11651 CRITICAL Emergency POC

9.8 Apr 30

An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. Rated critical severity (CVSS 9.8), th

CVE-2021-25282 CRITICAL Emergency POC

9.1 Feb 27

An issue was discovered in through SaltStack Salt before 3002.5. Rated critical severity (CVSS 9.1), this vulnerability

CVE-2020-11652 MEDIUM This Month POC

6.5 Apr 30

An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. Rated medium severity (CVSS 6.5), this

CVE-2021-31607 HIGH This Week POC

7.8 Apr 23

In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for

CVE-2013-6617 CRITICAL Act Now

10.0 Nov 05

The salt master in Salt (aka SaltStack) 0.11.0 through 0.17.0 does not properly drop group privileges, which makes it ea

CVE-2013-4437 CRITICAL Act Now

10.0 Nov 05

Unspecified vulnerability in salt-ssh in Salt (aka SaltStack) 0.17.0 has unspecified impact and vectors related to "inse

CVE-2017-12791 CRITICAL Act Now

9.8 Aug 23

Directory traversal vulnerability in minion id validation in SaltStack Salt before 2016.11.7 and 2017.7.x before 2017.7.

CVE-2017-14695 CRITICAL Act Now

9.8 Oct 24

Directory traversal vulnerability in minion id validation in SaltStack Salt before 2016.3.8, 2016.11.x before 2016.11.8,

CVE-2021-3197 CRITICAL Act Now

9.8 Feb 27

An issue was discovered in SaltStack Salt before 3002.5. Rated critical severity (CVSS 9.8), this vulnerability is remot

Same weakness CWE-284 – Improper Access Control

View all

CVE-2015-3306 CRITICAL POC

10.0

CVE-2012-4681 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2012-1723 CRITICAL POC

9.8

CVE-2012-5076 CRITICAL POC

9.8

CVE-2014-3120 HIGH POC

8.1

CVE-2013-2423 LOW POC

3.7

CVE-2016-3427 CRITICAL

9.8

Same technique Authentication Bypass

View all

CVE-2023-22515 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

ADVISORY https://docs.saltstack.com/en/2015.8/ref/configuration/master.html#rotate-aes-key REF http://www.openwall.com/lists/oss-security/2016/11/25/2 REF http://www.openwall.com/lists/oss-security/2016/11/25/3 REF http://www.securityfocus.com/bid/94553

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back