CVE-2020-36049

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.59% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 83.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-01-07 23:24Z5 YR AGO

Last updated

2024-08-04 17:16Z2 YR AGO

Reserved

2021-01-04

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-770Allocation of Resources Without Limits or ThrottlingBase
• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

f6b5224c424de848a00bb8b1ac1bbb8e61768be4830c9121a5260dbcde9b81d4

• blog.caller.xyzhttps://blog.caller.xyz/socketio-engineio-dos/x_refsource_MISC
• github.comhttps://github.com/bcaller/kill-engine-iox_refsource_MISC
• github.comhttps://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55x_refsource_MISC