CVE-2025-20276 Vulnerability Analysis & Exploit Details

CVE-2025-20276
Vulnerability Scoring

3.8
/10
Moderate Risk

Exploiting CVE-2025-20276 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-20276 Details

Status: Analyzed

Last updated: 🕜 22 Jul 2025, 13:40 UTC
Originally published on: 🕔 04 Jun 2025, 17:15 UTC

Time between publication and last update: 47 days

CVSS Release: version 3

CVSS3 Source

psirt@cisco.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

CVE-2025-20276 Vulnerability Summary

CVE-2025-20276: A vulnerability in the web-based management interface of Cisco Unified CCX could allow an authenticated, remote attacker to execute arbitrary code on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.  This vulnerability is due to insecure deserialization of Java objects by the affected software. An attacker could exploit this vulnerability by sending a crafted Java object to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system of an affected device as a low-privilege user. A successful exploit could also allow the attacker to undertake further actions to elevate their privileges to root.

Assessing the Risk of CVE-2025-20276

Access Complexity Graph

The exploitability of CVE-2025-20276 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-20276

The exploitability of CVE-2025-20276 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-20276, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-20276, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2025-20276 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2025-20276 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2025-20276 does not impact system availability.

CVE-2025-20276 References

External References

CWE Common Weakness Enumeration

CWE-502

CAPEC Common Attack Pattern Enumeration and Classification

  • Object Injection CAPEC-586 An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.

Vulnerable Configurations

  • cpe:2.3:a:cisco:unified_contact_center_express:8.5\(1\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:8.5\(1\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:9.0\(2\)su3es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:9.0\(2\)su3es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.0\(1\)su1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.0\(1\)su1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.0\(1\)su1es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.0\(1\)su1es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.5\(1\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.5\(1\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.5\(1\)su1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.5\(1\)su1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.5\(1\)su1es10:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.5\(1\)su1es10:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su2:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su2:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su2es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su2es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:10.6\(1\)su3es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.0\(1\)su1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.0\(1\)su1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.0\(1\)su1es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.0\(1\)su1es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.0\(1\)su1es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.0\(1\)su1es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.5\(1\)su1es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\)es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\)es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\)es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\)es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es05:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es05:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es06:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es06:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es07:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es07:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es08:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\)es08:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\)es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\):*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su01_es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su01_es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su01_es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su01_es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su01_es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su01_es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su02_es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es04:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es04:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es05:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es05:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es06:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)_su03_es06:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)es01:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)es01:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)es02:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)es02:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)es03:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)es03:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)su1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)su1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)su2:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)su2:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)su3:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:unified_contact_center_express:12.5\(1\)su3:*:*:*:*:*:*:*

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