CVE-2024-53271

HIGH EPSS 44.7%
Published Dec 18, 20241y ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Dec 18, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.1
Exploitability
2.8
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
44.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-670

Affected Products 2

VendorProductVersionRange
envoyproxyenvoy*≥1.31.0  –  <1.31.5
envoyproxyenvoy*≥1.32.0  –  ≤1.32.3

References 2

  • github.com https://github.com/envoyproxy/envoy/commit/da56f6da63079baecef9183436ee5f4141a59af8
    Patch
  • github.com https://github.com/envoyproxy/envoy/security/advisories/GHSA-rmm5-h2wv-mg4f
    ExploitThird Party Advisory

Remediation

  • github.com https://github.com/envoyproxy/envoy/commit/da56f6da63079baecef9183436ee5f4141a59af8
    Patch