CVE-2026-22586Network attack vector

Web protocol manipulation via hard-coded cryptographic key

Published Jan 24, 2026 · Updated Jan 24, 2026

Hard-coded key use in Salesforce Marketing Cloud Engagement before January 21, 2026 allows remote attackers to manipulate web-service requests. The affected modules relied on embedded cryptographic key material, but Salesforce has not disclosed how that key was applied while processing requests. No account or user interaction is required, but the specific request fields and server-side actions that attackers can alter remain undisclosed.

CVSS severity9.8
Critical
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded key use in Salesforce Marketing Cloud Engagement before January 21, 2026 allows remote attackers to manipulate web-service requests. The affected modules relied on embedded cryptographic key material, but Salesforce has not disclosed how that key was applied while processing requests. No account or user interaction is required, but the specific request fields and server-side actions that attackers can alter remain undisclosed.

The record

CVE
CVE-2026-22586
Published
Jan 24, 2026
Updated
Jan 24, 2026
Vendor
Salesforce
Product
Marketing Cloud Engagement
Classifications
CWE-321, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <January 21, 2026

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Salesforce · Marketing Cloud Engagementversion=0 <January 21, 2026

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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