What is the CVSS score of EUVD-2025-199991?

EUVD-2025-199991 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Hello Video Codec are affected by EUVD-2025-199991?

CVE-2025-63095 presents notable security risk, a input validation vulnerability rated CVSS 6.5. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for EUVD-2025-199991?

Yes, a public proof-of-concept exploit is available for EUVD-2025-199991. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate EUVD-2025-199991?

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

Hello Video Codec EUVD-2025-199991

| CVE-2025-63095 MEDIUM

Improper Input Validation (CWE-20)

2025-12-01 cve@mitre.org

Denial Of Service Hello Video Codec

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 13:34 euvd

EUVD-2025-199991

Analysis Generated

Mar 15, 2026 - 13:34 vuln.today

PoC Detected

Dec 23, 2025 - 13:53 vuln.today

Public exploit code

CVE Published

Dec 01, 2025 - 16:15 nvd

MEDIUM 6.5

DescriptionCVE.org

Improper input validation in the BitstreamWriter::write_bits() function of Tempus Ex hello-video-codec v0.1.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Analysis

Improper input validation in the BitstreamWriter::write_bits() function of Tempus Ex hello-video-codec v0.1.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Technical ContextAI

A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Improper Input Validation (CWE-20).

RemediationAI

Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.

EUVD-2025-199991 vulnerability details – vuln.today

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Hello Video Codec EUVD-2025-199991

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Analysis

Technical ContextAI

RemediationAI

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External POC / Exploit Code