CVE-2020-36049

HIGH EPSS 83.3%
Published Jan 8, 20215y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jan 8, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

Description

socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
83.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-770

Affected Products 1

VendorProductVersionRange
socketsocket.io-parser* <3.4.1

References 3

  • blog.caller.xyz https://blog.caller.xyz/socketio-engineio-dos/
    ExploitThird Party Advisory
  • github.com https://github.com/bcaller/kill-engine-io
    Third Party Advisory
  • github.com https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55
    PatchThird Party Advisory