CyberSecBulletin
CVE-2026-48399NVD status: Analyzed

Adobe Campaign Classic: Violation of Secure Design Principles

CVE-2026-48399 is a high-severity violation of secure design principles vulnerability in Adobe Campaign Classic from Adobe, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Adobe Campaign Classic versions: ACC v7: 7.4.3 build 9398 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.87% chance of exploitation within 30 days, higher than 60% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Adobe Campaign Classic you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on helpx.adobe.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
AdobeAdobe Campaign ClassicACC v7: 7.4.3 build 9398 and earlierNot stated
AdobeCampaign7.4.2 and earlier; 7.4.3Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CNA (adobe.com).

Official description

Adobe Campaign Classic (ACC) is affected by a Violation of Secure Design Principles vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized read access. Exploitation of this issue does not require user interaction.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Violation of Secure Design Principles

The product violates well-established principles for secure design.

More Violation of Secure Design Principles vulnerabilities (CWE-657)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Adobe Campaign Classic

All Adobe Campaign Classic vulnerabilities

Recent Violation of Secure Design Principles vulnerabilities

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