Engine.Io
Vendor:
First CVE: Jan 8, 2021 · Active for 5 years
6
Total CVEs
More Total CVEs than 80% of tracked products
1.5
Avg CVEs / Year
Higher CVE frequency than 56% of tracked products
7.2
Avg CVSS
Higher Avg CVSS than 44% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Engine.Io over time
Volume of CVEsAvg CVSS Base Score
First CVE
Jan 8, 2021
5 years ago
Most Recent CVE
Jul 8, 2026
16 days ago
CVE Severity & Scoring
Engine.Io6 CVEs
33%
67%
All CVEs352,231 CVEs
45%
40%
11%
MediumHigh
Attack Vector
Local0 (0.0%)
Network6 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low6 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None6 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low2 (33.3%)
High0 (0.0%)
None4 (66.7%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (6 CVEs).
6 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-59725HIGH Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP | Jul 8, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-59724HIGH Socket.IO enables bidirectional and low-latency communication for every platform. From 6.5.0 before 6.6.7, Engine.IO servers with WebTransport enabled can resolve a crafted session | Jul 8, 2026 | 7.5 | 33 | NO | NO |
CVE-2020-36048HIGH 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. | Jan 8, 2021 | 7.5 | 26 | NO | NO |
CVE-2022-21676HIGH Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an unca | Jan 12, 2022 | 7.5 | 25 | NO | NO |
CVE-2023-31125MEDIUM Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. An uncaught exception vulnerability was introduced i | May 8, 2023 | 6.5 | 22 | NO | NO |
CVE-2022-41940MEDIUM Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an unca | Nov 22, 2022 | 6.5 | 22 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (6 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (6 CVEs).
Media Mentions
Signals from CVEs in this product scope (6 CVEs).
Top CNAs Publishing CVEs For Engine.Io
Top CWEs
Versions
No cataloged versions.