Illustration: Adobe Patches Eight Critical Campaign Classic Flaws, Four Rated CVSS 9.9
Adobe Campaign Classic · Disclosed

Adobe Patches Eight Critical Campaign Classic Flaws, Four Rated CVSS 9.9

· 1 min read

Adobe has released patches for eight critical flaws in Campaign Classic, its marketing automation platform. Four are rated CVSS 9.9, including CVE-2026-104351, a code injection flaw allowing arbitrary code execution; the batch also covers security feature bypass and privilege escalation. No active exploitation is reported; administrators should apply the updates immediately on Windows and Linux versions.

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In this article
  1. What happened
  2. Why it matters
  3. What to do
  4. For the technical team
  5. Timeline
  6. Sources

What happened

Adobe has patched eight critical flaws in Campaign Classic, its marketing automation platform. If exploited, they allow arbitrary code execution, security feature bypass, and privilege escalation. Four of the eight flaws are rated CVSS 9.9, according to The Hacker News.

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Why it matters

Campaign Classic handles customer data and marketing campaigns; a compromise could expose that data and halt communications operations. Code execution and privilege escalation flaws give an attacker broad control of the affected server.

What to do

Apply Adobe's updates immediately to all Windows and Linux installations of Campaign Classic. Inventory how many instances exist in the environment and confirm every one is patched.

For the technical team

CVE
CVE-2026-104351
Affected
Adobe Campaign Classic (plataforma de automação de marketing) · Windows and Linux versions of Adobe Campaign Classic. Specific versions not cited in the sources.
Exploitation
No active exploitation reported by the sources.
Fix
Patches released by Adobe; apply the updates immediately. Fixed versions not specified in the sources.
Vector
Eight flaws in Adobe Campaign Classic. The most severe is CVE-2026-104351, a code injection flaw with CVSS 9.9 that could lead to arbitrary code execution. The batch includes security feature bypass and privilege escalation. The sources do not detail exploitation conditions, such as authentication requirements.
More details
The Hacker News reports that four of the eight flaws are rated CVSS 9.9. The sources identify only CVE-2026-104351; the remaining identifiers were not disclosed in the available texts.

Timeline

  1. The Hacker News details that four of the eight flaws are rated CVSS 9.9 and allow arbitrary code execution, security bypass, and privilege escalation; Windows and Linux versions are affected.

  2. Incident opened.

Sources 2 sources

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