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CVE-2025-49533VulnerabilityPublished Updated

CVE-2025-49533: Adobe Experience Manager (MS) · Deserialization of Untrusted Data

Affects Adobe Experience Manager (MS)Source CVE Database V5

0

Not known to be exploited · public detection template (Nuclei) · 51% EPSS · CVSS 9.8 Critical.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
51.6% chance of exploitation in 30 days – higher than 98% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Jul 2025

  2. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  3. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Adobe Adobe Experience Manager (MS)Affected
  • =0
Fixed in–

AI-suggested

To mitigate CVE-2025-49533, organizations should immediately upgrade Adobe Experience Manager (MS) to a patched version once Adobe releases an official fix. In the absence of an available patch, implement the following specific mitigations: 1) Restrict network access to Adobe Experience Manager instances by enforcing strict firewall rules and limiting exposure to trusted IP addresses only. 2) Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious serialized payloads or anomalous traffic patterns targeting deserialization endpoints. 3) Disable or restrict features that accept serialized input if feasible, or implement input validation and deserialization hardening techniques such as using allowlists for classes during deserialization. 4) Monitor logs and network traffic for unusual activity indicative of exploitation attempts, including unexpected deserialization operations or code execution traces. 5) Conduct thorough security assessments and penetration testing focused on deserialization vectors to identify and remediate additional weaknesses. 6) Educate development and operations teams about secure deserialization practices to prevent similar vulnerabilities in custom code. These targeted actions, combined with timely patching, will significantly reduce the risk posed by this vulnerability.

Description

Adobe Experience Manager (MS) versions 6.5.23.0 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could lead to arbitrary code execution by an attacker. Exploitation of this issue does not require user interaction. Scope is unchanged.

References

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