What is the CVSS score of CVE-2026-22586?

CVE-2026-22586 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-22586?

Within 24 hours: Identify all Salesforce Marketing Cloud Engagement instances in your environment and document their business criticality and data sensitivity. Within 7 days: Implement compensating controls including WAF rules to block suspicious web service API requests, enable detailed logging/monitoring on Marketing Cloud instances, and restrict network access to these modules where possible. Within 30 days: Establish regular communication with Salesforce for patch timeline, conduct a security assessment of exposed data, consider temporarily disabling non-critical modules if risk tolerance is low, and prepare incident response procedures.

Salesforce CVE-2026-22586

CRITICAL

Use of Hard-coded Cryptographic Key (CWE-321)

2026-01-24 security@salesforce.com

Information Disclosure Salesforce Marketing Cloud Engagement

9.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Discover hard-coded cryptographic key in Salesforce Marketing Cloud
Delivery

Intercept encrypted Web Services Protocol communications
Exploit

Decrypt and manipulate marketing cloud messages
Execution

Gain unauthorized access to customer data
Impact

Modify campaign content or redirect communications

Vulnerability Assessment

Weakness	CWE CWE-321 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Key management, no hard-coded keys
Exploitation Conditions	Salesforce Marketing Cloud Engagement instances running CloudPages, Forward to a Friend, Profile Center, Subscription Center, Unsub Center, or View As Webpage modules before January 21st, 2026 patch. No authentication required for Web Services Protocol exploitation.
Impact	CVSS 9.8. Hardcoded key enables decryption of data and forgery of tokens for all Marketing Cloud users.
Exploit ScenarioDerived	Attacker uses the hardcoded key to decrypt subscriber data, forge authentication tokens, or bypass integrity checks across Marketing Cloud.

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

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Hardcoded cryptographic key in Salesforce Marketing Cloud Engagement used across CloudPages, Forward to a Friend, Profile Center, and Subscription Center. Fourth critical Salesforce CVE.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:59 CVSS 9.8

Hardcoded crypto key in Salesforce Marketing Cloud.

RemediationAI

Apply Salesforce security update. Rotate any derived keys.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

CWE-321 hardcoded cryptographic key shared across multiple Marketing Cloud components.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

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

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

High

DescriptionCVE.org

Hard-coded Cryptographic Key vulnerability in Salesforce Marketing Cloud Engagement (CloudPages, Forward to a Friend, Profile Center, Subscription Center, Unsub Center, View As Webpage modules) allows Web Services Protocol Manipulation. This issue affects Marketing Cloud Engagement: before January 21st, 2026.

Executive ViewAI

Why It Matters

A critical vulnerability in Salesforce Marketing Cloud Engagement exposes hard-coded cryptographic keys that could allow attackers to manipulate web services and gain unauthorized access to customer communications, subscription data, and personal information. This affects all organizations using CloudPages, Forward to a Friend, Profile Center, Subscription Center, and related modules, with no patch currently available.

Business Impact: Severe

Compensating Controls

Implement Web Application Firewall (WAF) rules to detect and block anomalous web service protocol requests; enable and monitor detailed audit logs for all Marketing Cloud API activity; restrict network access to Marketing Cloud modules using IP whitelisting or VPN; disable non-critical modules (Forward to a Friend, Profile Center) temporarily if business operations permit; implement additional authentication controls at application layer; increase monitoring for suspicious credential usage or data exfiltration; consider segmenting Marketing Cloud instances from other critical systems; request Salesforce incident response and threat intelligence briefing.

Threat Intelligence Overview

EPSS Score

0.0%

Top 95% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

VulDB

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 0.0%

Patch available No

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

Out-of-Cycle

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +49

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.