# CVE-2026-104353: Adobe Campaign Classic (ACC) | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)

Status: published. Published: 2026-10-27. Updated: 2026-11-02.

Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Adobe / Adobe Campaign Classic: ≥ 0; ≤ 7.4.4 build 9402 (affected, custom); 7.4.4 build 9403 (unaffected, custom). Source: CNA: adobe

## Severity and prioritization

- CVSS 3.1: 9.9 (critical); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H; source: CNA: adobe

- CISA KEV: No listing in collected sources

- EPSS: 1.30% as of 2026-11-02; percentile 70.45%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-78

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.adobe.com/trust/security/products/campaign/apsb26-162.html (CNA: adobe; vendor-advisory)

## Provenance

- CNA: adobe: https://www.cve.org/CVERecord?id=CVE-2026-104353; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-104353; retrieved 2026-11-02; source updated Not reported

Revision: 19fa4e6a011b35c1aef3b0e869530877e216403904d6a86caa6e23cfe4907375

Canonical: https://y2.dev/cve/CVE-2026-104353

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