CVE-2025-55315 Vulnerability Analysis & Exploit Details

CVE-2025-55315
Vulnerability Scoring

9.9
/10
Critical Risk

As a catastrophic security flaw, CVE-2025-55315 has severe implications, demanding immediate intervention.

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: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-55315 Details

Status: Analyzed

Last updated: 🕝 16 Oct 2025, 14:56 UTC
Originally published on: 🕔 14 Oct 2025, 17:15 UTC

Time between publication and last update: 1 days

CVSS Release: version 3

CVSS3 Source

secure@microsoft.com

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2025-55315 Vulnerability Summary

CVE-2025-55315: Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.

Assessing the Risk of CVE-2025-55315

Access Complexity Graph

The exploitability of CVE-2025-55315 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-2025-55315

CVE-2025-55315 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

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-2025-55315, 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-2025-55315, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2025-55315 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2025-55315 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: Low
    CVE-2025-55315 may slightly degrade system performance without fully affecting service availability.

CVE-2025-55315 References

External References

CWE Common Weakness Enumeration

CWE-444

CAPEC Common Attack Pattern Enumeration and Classification

  • HTTP Response Smuggling CAPEC-273 An adversary manipulates and injects malicious content in the form of secret unauthorized HTTP responses, into a single HTTP response from a vulnerable or compromised back-end HTTP agent (e.g., server). See CanPrecede relationships for possible consequences. Modification/manipulation of HTTP message headers, request-line and body parameters to disrupt and interfere in the interpretation and parsing of HTTP message lengths/boundaries for consecutive HTTP messages by HTTP agents in a HTTP chain or network path.
  • HTTP Request Smuggling CAPEC-33 An adversary abuses the flexibility and discrepancies in the parsing and interpretation of HTTP Request messages using various HTTP headers, request-line and body parameters as well as message sizes (denoted by the end of message signaled by a given HTTP header) by different intermediary HTTP agents (e.g., load balancer, reverse proxy, web caching proxies, application firewalls, etc.) to secretly send unauthorized and malicious HTTP requests to a back-end HTTP agent (e.g., web server). See CanPrecede relationships for possible consequences. Modification/manipulation of HTTP message headers, request-line and body parameters to disrupt and interfere in the interpretation and parsing of HTTP message lengths/boundaries for consecutive HTTP messages by HTTP agents in a HTTP chain or network path.

Vulnerable Configurations

  • cpe:2.3:a:microsoft:asp.net_core:8.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.10:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.10:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.11:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.11:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.12:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.12:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.13:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.13:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.14:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.14:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.15:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.15:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.16:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.16:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:8.0.17:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:8.0.17:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:asp.net_core:9.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:asp.net_core:9.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.7:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.7:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.8:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.8:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.9:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.9:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.10:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.10:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.11:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.11:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.12:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.12:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.13:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.13:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.14:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.14:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.15:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.15:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.16:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.16:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.10.17:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.10.17:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.12.10:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.12.10:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.0:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.0:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.1:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.1:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.2:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.2:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.3:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.3:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.4:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.4:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.5:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.5:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.6:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.6:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.7:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.7:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.8:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.8:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.9:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.9:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.10:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.10:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.11:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.11:*:*:*:*:-:*:*
  • cpe:2.3:a:microsoft:visual_studio_2022:17.14.12:*:*:*:*:-:*:*
    cpe:2.3:a:microsoft:visual_studio_2022:17.14.12:*:*:*:*:-:*:*

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