7.5

CVE-2020-36048: socket engine.io Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesGHSA-j4f2-536g-r55m
Published 07-01-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-36048 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in socket engine.io. EPSS estimates a 3.28% chance of exploitation in the next 30 days, higher than 88.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.28%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 07-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Engine.IO before 4.0.0 allows attackers to cause a denial of service (resource consumption) via a POST request to the long polling transport.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.28%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

+0.04 pp

From 3.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
3.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (blog.caller.xyz)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Npm1 product
  • engine.io< 3.6.0
Socket1 product

2 vendors · 2 products

References

7 links