CVE-2024-53271

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

18/12/2024

Last modified:

04/09/2025

Description

Envoy is a cloud-native high-performance edge/middle/service proxy. In affected versions envoy does not properly handle http 1.1 non-101 1xx responses. This can lead to downstream failures in networked devices. This issue has been addressed in versions 1.31.5 and 1.32.3. Users are advised to upgrade. There are no known workarounds for this issue.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

Base Score 3.x

7.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:envoyproxy:envoy::::::::	1.31.0 (including)	1.31.5 (excluding)
cpe:2.3:a:envoyproxy:envoy::::::::	1.32.0 (including)	1.32.3 (including)

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-53271

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools