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Fencer Intel
high 7.5

CVE-2016-10542 json

DoS due to excessively large websocket message in ws

published 2018-05-31 8 y ago modified 2026-06-17 4 mo ago also GHSA-6663-c963-2gqg , EUVD-2019-0237

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.3%
EPSS 7.3% chance of exploitation in 30 days, percentile 94%
public exploits
1
Metasploit

Summary

ws is a "simple to use, blazing fast and thoroughly tested websocket client, server and console for node.js, up-to-date against RFC-6455". By sending an overly long websocket payload to a `ws` server, it is possible to crash the node process. This affects ws 1.1.0 and earlier.

Patch / fix

  • npm ws 1.1.1
  • node-ws Debian 14, Debian 13, Debian 12 1.1.0+ds1.e6ddaae4-5

debian advisories DEBIAN-CVE-2016-10542

Exploit prediction

7.29% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected packages

ecosystem package affected fixed in
npm ws
<1.1.1
1.1.1

Affected products

  • HackerOne ws node module

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.