Resource exhaustion in Socket Socket.io-Parser
CVE-2020-36049
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- blog.caller.xyz/socketio-engineio-dos/ (Exploit, Third Party Advisory)
- github.com/bcaller/kill-engine-io (Third Party Advisory)
- github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf308753… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-36049?
- CVE-2020-36049 is a high-severity vulnerability in Socket Socket.io-Parser, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2021-01-08.
- How severe is CVE-2020-36049?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-36049 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.