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CVE-2021-28682

nvd nist
Published: May 20, 2021Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.

Affected (4)

Products: Envoyproxy: Envoy
Envoyproxy
1 product
Envoy
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Envoyproxy
Envoy
Version 1.14.6
Envoy
Version 1.15.3
Envoy
Version 1.16.2
Envoy
Version 1.17.1

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (7)

Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: nvd@nist.gov
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.