Pexip Infinity up to 38.x Direct Media for WebRTC assertion

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Pexip Infinity up to 38.x. Affected by this vulnerability is an unknown functionality of the component Direct Media for WebRTC. Executing a manipulation can lead to assertion. The identification of this vulnerability is CVE-2025-66443. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Pexip Infinity up to 38.x and classified as problematic. This vulnerability affects an unknown part of the component Direct Media for WebRTC. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability. CVE summarizes:

Pexip Infinity 35.0 through 38.1 before 39.0, in non-default configurations that use Direct Media for WebRTC, has Improper Input Validation in signalling that allows an attacker to trigger a software abort, resulting in a temporary denial of service.

The advisory is shared for download at docs.pexip.com. This vulnerability was named CVE-2025-66443 since 12/01/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 39.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-205366). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔒

CNA Base Score: 7.5
CNA Vector (MITRE): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Infinity 39.0

Timelineinfo

12/01/2025 CVE reserved
12/25/2025 +24 days Advisory disclosed
12/25/2025 +0 days VulDB entry created
01/05/2026 +11 days VulDB entry last update

Sourcesinfo

Advisory: docs.pexip.com
Status: Confirmed

CVE: CVE-2025-66443 (🔒)
GCVE (CVE): GCVE-0-2025-66443
GCVE (VulDB): GCVE-100-338404
EUVD: 🔒

Entryinfo

Created: 12/25/2025 08:48
Updated: 01/05/2026 21:27
Changes: 12/25/2025 08:48 (63), 12/25/2025 10:17 (1), 01/05/2026 21:27 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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