# Adobe patches 18 critical Campaign Classic flaws

Published: 2026-09-24 · Severity: high · Sectors: technology, retail, media
Canonical: https://vorant.io/reports/852eb6b3-b8a9-51e9-a02e-73077d69aee9/adobe-patches-18-critical-campaign-classic-flaws

> Adobe fixed 18 critical vulnerabilities in Campaign Classic, including 8 CVSS 10.0 unauthenticated RCE bugs; NCSC-NL urges upgrade to 7.4.4 build 9402.

NCSC-NL published an advisory summarizing Adobe's patch for 18 critical vulnerabilities in Adobe Campaign Classic, a marketing automation platform. The flaws span OS command injection, SQL injection, code injection, incorrect authorization, and Server-Side Request Forgery (SSRF). Ten of the eighteen vulnerabilities can be exploited remotely without authentication, and eight of these (CVE-2026-82004, CVE-2026-73369, CVE-2026-84412, CVE-2026-89275, CVE-2026-75723, CVE-2026-75699, CVE-2026-75703, CVE-2026-75721) carry the maximum CVSS score of 10.0, requiring no authentication or user interaction. Seven of these are noted by Adobe as capable of arbitrary code execution; CVE-2026-75703 is noted for Denial-of-Service impact.

Successful exploitation across the full set of vulnerabilities could result in arbitrary code execution, privilege escalation, security control bypass, arbitrary file read, and denial of service. Adobe-hosted (cloud) environments have already been patched by Adobe; self-hosted/on-premises customers must apply the update themselves. No evidence of in-the-wild exploitation is mentioned in this advisory, but given the unauthenticated, zero-click nature of multiple critical RCE flaws, defenders running self-managed Adobe Campaign Classic instances should prioritize patching.

Remediation: update Adobe Campaign Classic to version 7.4.4 build 9402. Defenders should verify patch status of any on-premises deployments immediately, monitor for anomalous authentication-free requests to Campaign Classic endpoints, and review logs for signs of command/SQL injection or SSRF attempts pending confirmation of patch application.

## Mentioned in this report

- Vulnerabilities: CVE-2026-73369, CVE-2026-75699, CVE-2026-75703, CVE-2026-75721, CVE-2026-75723, CVE-2026-75728, CVE-2026-82003, CVE-2026-82004, CVE-2026-82008, CVE-2026-82009, CVE-2026-82010, CVE-2026-82011, CVE-2026-82013, CVE-2026-82443, CVE-2026-83660, CVE-2026-84412, CVE-2026-89275, CVE-2026-89276

Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0393.html

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