EUVD-2025-16888Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V1 - Encoding and Sanitization Safe deserialization, type allowlists
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Remote code execution, denial of service, or authentication bypass through manipulation of serialized object state. With a CVSS score of 5.3 (MEDIUM), this represents a moderate risk. |
| Exploit ScenarioDerived | An attacker modifies a serialized object (e.g., in a cookie or API parameter) to include malicious payloads that execute during the deserialization process. |
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Alert meAnalysisAIv1 – Mar 14, 2026
A vulnerability in the file opening process of Cisco Unified Contact Center Express (Unified CCX) Editor could allow an unauthenticated attacker to execute arbitrary code on an affected device.
This vulnerability is due to insecure deserialization of Java objects by the affected software. An attacker could exploit this vulnerability by persuading an authenticated, local user to open a crafted .aef file. A successful exploit could allow the attacker to execute arbitrary code on the host that is running the editor application with the privileges of the user who launched it.
Earlier versions of this analysis (1)
RemediationAI
Avoid deserializing untrusted data. Use safe serialization formats (JSON instead of native serialization). Implement integrity checks on serialized data.
Affected VersionsENISA
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Insecure deserialization occurs when untrusted data is used to reconstruct objects, allowing attackers to manipulate serialized data to execute arbitrary code. This vulnerability is classified as Deserialization of Untrusted Data (CWE-502).
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Executive ViewAI
CVE-2025-20275 presents moderate security risk, a insecure deserialization vulnerability rated CVSS 5.3. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Apache Log4j2 contains a critical JNDI injection vulnerability known as 'Log4Shell' that allows unauthenticated remote c
A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System softw
A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenti
Authentication bypass in the Cisco Unified CCX (Contact Center Express) Editor-to-server authentication flow allows an u
A vulnerability in the Java Remote Method Invocation (RMI) process of Cisco Unified CCX could allow an unauthenticated,
A vulnerability in the Java Remote Management Interface of Cisco Unified Contact Center Express (Unified CCX) could allo
Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) cou
Cross-site request forgery (CSRF) vulnerability in Cisco Unified Intelligence Center (CUIC) 8.5.4 through 9.1(1), as use
Multiple vulnerabilities in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) cou
The j_spring_security_switch_user function in Cisco Unified Intelligence Center (CUIC) 8.5.4 through 9.1(1), as used in
A vulnerability in the Tool for Auto-Registered Phones Support (TAPS) of Cisco Unified Communications Manager (UCM) and
A vulnerability in Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to
GitHub PoC
Exploit-DB