What is the CVSS score of CVE-2025-27556?

CVE-2025-27556 has a CVSS 3.1 base score of 5.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L. EPSS exploitation probability: 0.2%.

Which versions of Windows are affected by CVE-2025-27556?

Organizations using Django 5.1 should be aware of moderate risk from CVE-2025-27556 rated CVSS 5.8. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-27556?

Within 30 days: Identify affected systems running Django 5.1 and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Windows CVE-2025-27556

MEDIUM

Allocation of Resources Without Limits or Throttling (CWE-770)

2025-04-02 cve@mitre.org

Windows Denial Of Service Python Microsoft Red Hat Django Suse

5.8

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:34 vuln.today

CVE Published

Apr 02, 2025 - 13:15 nvd

MEDIUM 5.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

14 pypi packages depend on django (14 direct, 0 indirect)

Ecosystem-wide dependent count for version 5.1.

DescriptionNVD

An issue was discovered in Django 5.1 before 5.1.8 and 5.0 before 5.0.14. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.views.LoginView, django.contrib.auth.views.LogoutView, and django.views.i18n.set_language are subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters.

AnalysisAI

An issue was discovered in Django 5.1 before 5.1.8 and 5.0 before 5.0.14. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. An issue was discovered in Django 5.1 before 5.1.8 and 5.0 before 5.0.14. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.views.LoginView, django.contrib.auth.views.LogoutView, and django.views.i18n.set_language are subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters. Affected products include: Djangoproject Django. Version information: before 5.1.8.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set resource limits, implement rate limiting, validate input sizes.