What is the CVSS score of CVE-2025-4894?

CVE-2025-4894 has a CVSS 4.0 base score of 6.3 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2025-4894?

Yes, a public proof-of-concept exploit is available for CVE-2025-4894. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-4894?

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

Django Sso Server CVE-2025-4894

MEDIUM

Cryptographic Issues (CWE-310)

2025-05-18 cna@vuldb.com

Python Information Disclosure Django Sso Server

6.3

CVSS 4.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-310 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Cryptographic controls
Impact	CVSS score of 6.3 (MEDIUM). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.06%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 28, 2026

A vulnerability classified as problematic was found in calmkart Django-sso-server up to 057247929a94ffc358788a37ab99e391379a4d15. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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

This vulnerability is classified under CWE-310. A vulnerability classified as problematic was found in calmkart Django-sso-server up to 057247929a94ffc358788a37ab99e391379a4d15. This vulnerability affects the function gen_rsa_keys of the file common/crypto.py. The manipulation leads to inadequate encryption strength. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. Affected products include: Calmkart Django-Sso-Server. Version information: up to 057247929.

Know when Django Sso Server gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.3 MEDIUM

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

PoC Detected

Jun 05, 2025 - 19:39 vuln.today

Public exploit code

CVE Published

May 18, 2025 - 20:15 nvd

MEDIUM 6.3

DescriptionCVE.org

A vulnerability classified as problematic was found in calmkart Django-sso-server up to 057247929a94ffc358788a37ab99e391379a4d15. This vulnerability affects the function gen_rsa_keys of the file common/crypto.py. The manipulation leads to inadequate encryption strength. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available.

Executive ViewAI

Why It Matters

Organizations using calmkart Django-sso-server should be aware of moderate risk from CVE-2025-4894 rated CVSS 6.3. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 80% exploitable

Exploit

POC

Public exploit code exists

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.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.