Adobe Releases Third Emergency Patch for Campaign Classic in Two Weeks, Fixing Critical RCE Vulnerabilities

Adobe has issued another urgent security update for Adobe Campaign Classic after discovering multiple critical vulnerabilities that affect the previous patches released on July 29 and August 3. The new advisory, published on August 11, 2026, addresses three CVEs rated Critical, including two remote code execution flaws with CVSSv3.1 base scores of 10.0. These authorization bypass issues allow unauthenticated attackers to execute arbitrary code remotely. The affected versions include 7.4.3 build 9398 and build 9399, which were themselves emergency fixes issued only days earlier. Adobe urges all customers to apply the latest update immediately due to the high risk of exploitation. This marks the third high-severity patch for the product within a two-week period.

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Adobe has released yet another emergency security update for Adobe Campaign Classic, marking the third such patch in just half a month. The company warned customers to apply the fix as quickly as possible after identifying new high-severity vulnerabilities.

Earlier updates on July 29 and August 3 delivered Adobe Campaign Classic 7.4.3 build 9398 and build 9399, yet these versions remain affected by multiple flaws. On August 11, 2026, Adobe published a security advisory detailing the issues and urging immediate remediation.

The update resolves three vulnerabilities tracked under CVE identifiers, all rated Critical. Two of them, CVE-2026-71398 and CVE-2026-27302, stem from improper authorization handling and permit remote code execution without authentication. Both received the maximum CVSSv3.1 base score of 10.0.

Adobe emphasized the elevated risk of exploitation and advised organizations to update without delay to protect their Campaign Classic deployments.

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