CVE-2017-11499

Node.js v4.0 through v4.8.3, all versions of v5.x, v6.0 through v6.11.0, v7.0 through v7.10.0, and v8.0 through v8.1.3 was susceptible to hash flooding remote DoS attacks as the HashTable seed was constant across a given released version of Node.js. This was a result of building with V8 snapshots enabled by default which caused the initially randomized seed to be overwritten on startup.

Published: 2017-07-25 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-11499 is rated High Risk (67/100): CVSS High severity, with high exploitation likelihood (EPSS 5.48%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.93% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-11499

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.55% 5.48% +4.93%
2 2026-05-24 0.38% 0.55% +0.17%
3 2026-03-08 — 0.38% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-11499

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-11499

OS Trackers for CVE-2017-11499

vendor priority summary link
debian unimportant CVE-2017-11499 unimportant priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-11499
redhat medium — https://access.redhat.com/security/cve/CVE-2017-11499
suse medium CVE-2017-11499 severity moderate: SUSE including 216 source package names (MozillaFirefox-68.2.0-78.51.4, MozillaFirefox-branding-SLED-68-21.9.8, …), 539 product×package rows across 33 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (33 product lines)): Fixed 414, Known Not Affected 125. https://www.suse.com/security/cve/CVE-2017-11499/
ubuntu medium CVE-2017-11499 medium priority: Ubuntu including 1 source packages (nodejs), 21 status rows across 21 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial, zesty): not-affected 18, ignored 1, needed 1, released 1. https://ubuntu.com/security/CVE-2017-11499

Affected software / configurations for CVE-2017-11499

Vendor Product Version Raw CPE
nodejs node.js 4.0.0 cpe:2.3:a:nodejs:node.js:4.0.0:*:*:*:*:*:*:*
nodejs node.js 4.1.0 cpe:2.3:a:nodejs:node.js:4.1.0:*:*:*:*:*:*:*
nodejs node.js 4.1.1 cpe:2.3:a:nodejs:node.js:4.1.1:*:*:*:*:*:*:*
nodejs node.js 4.1.2 cpe:2.3:a:nodejs:node.js:4.1.2:*:*:*:*:*:*:*
nodejs node.js 4.2.0 cpe:2.3:a:nodejs:node.js:4.2.0:*:*:*:*:*:*:*
nodejs node.js 4.2.1 cpe:2.3:a:nodejs:node.js:4.2.1:*:*:*:*:*:*:*
nodejs node.js 4.2.2 cpe:2.3:a:nodejs:node.js:4.2.2:*:*:*:*:*:*:*
nodejs node.js 4.2.3 cpe:2.3:a:nodejs:node.js:4.2.3:*:*:*:*:*:*:*
nodejs node.js 4.2.4 cpe:2.3:a:nodejs:node.js:4.2.4:*:*:*:*:*:*:*
nodejs node.js 4.2.5 cpe:2.3:a:nodejs:node.js:4.2.5:*:*:*:*:*:*:*
nodejs node.js 4.2.6 cpe:2.3:a:nodejs:node.js:4.2.6:*:*:*:*:*:*:*
nodejs node.js 4.3.0 cpe:2.3:a:nodejs:node.js:4.3.0:*:*:*:*:*:*:*
nodejs node.js 4.3.1 cpe:2.3:a:nodejs:node.js:4.3.1:*:*:*:*:*:*:*
nodejs node.js 4.3.2 cpe:2.3:a:nodejs:node.js:4.3.2:*:*:*:*:*:*:*
nodejs node.js 4.4.0 cpe:2.3:a:nodejs:node.js:4.4.0:*:*:*:*:*:*:*
nodejs node.js 4.4.1 cpe:2.3:a:nodejs:node.js:4.4.1:*:*:*:*:*:*:*
nodejs node.js 4.4.2 cpe:2.3:a:nodejs:node.js:4.4.2:*:*:*:*:*:*:*
nodejs node.js 4.4.3 cpe:2.3:a:nodejs:node.js:4.4.3:*:*:*:*:*:*:*
nodejs node.js 4.4.4 cpe:2.3:a:nodejs:node.js:4.4.4:*:*:*:*:*:*:*
nodejs node.js 4.4.5 cpe:2.3:a:nodejs:node.js:4.4.5:*:*:*:*:*:*:*
nodejs node.js 4.4.6 cpe:2.3:a:nodejs:node.js:4.4.6:*:*:*:*:*:*:*
nodejs node.js 4.4.7 cpe:2.3:a:nodejs:node.js:4.4.7:*:*:*:*:*:*:*
nodejs node.js 4.5.0 cpe:2.3:a:nodejs:node.js:4.5.0:*:*:*:*:*:*:*
nodejs node.js 4.6.0 cpe:2.3:a:nodejs:node.js:4.6.0:*:*:*:*:*:*:*
nodejs node.js 4.6.1 cpe:2.3:a:nodejs:node.js:4.6.1:*:*:*:*:*:*:*
nodejs node.js 4.6.2 cpe:2.3:a:nodejs:node.js:4.6.2:*:*:*:*:*:*:*
nodejs node.js 4.7.0 cpe:2.3:a:nodejs:node.js:4.7.0:*:*:*:*:*:*:*
nodejs node.js 4.7.1 cpe:2.3:a:nodejs:node.js:4.7.1:*:*:*:*:*:*:*
nodejs node.js 4.7.2 cpe:2.3:a:nodejs:node.js:4.7.2:*:*:*:*:*:*:*
nodejs node.js 4.7.3 cpe:2.3:a:nodejs:node.js:4.7.3:*:*:*:*:*:*:*
nodejs node.js 4.8.0 cpe:2.3:a:nodejs:node.js:4.8.0:*:*:*:*:*:*:*
nodejs node.js 4.8.1 cpe:2.3:a:nodejs:node.js:4.8.1:*:*:*:*:*:*:*
nodejs node.js 4.8.2 cpe:2.3:a:nodejs:node.js:4.8.2:*:*:*:*:*:*:*
nodejs node.js 4.8.3 cpe:2.3:a:nodejs:node.js:4.8.3:*:*:*:*:*:*:*
nodejs node.js 5.0.0 cpe:2.3:a:nodejs:node.js:5.0.0:*:*:*:*:*:*:*
nodejs node.js 5.1.0 cpe:2.3:a:nodejs:node.js:5.1.0:*:*:*:*:*:*:*
nodejs node.js 5.1.1 cpe:2.3:a:nodejs:node.js:5.1.1:*:*:*:*:*:*:*
nodejs node.js 5.2.0 cpe:2.3:a:nodejs:node.js:5.2.0:*:*:*:*:*:*:*
nodejs node.js 5.3.0 cpe:2.3:a:nodejs:node.js:5.3.0:*:*:*:*:*:*:*
nodejs node.js 5.4.0 cpe:2.3:a:nodejs:node.js:5.4.0:*:*:*:*:*:*:*
nodejs node.js 5.4.1 cpe:2.3:a:nodejs:node.js:5.4.1:*:*:*:*:*:*:*
nodejs node.js 5.5.0 cpe:2.3:a:nodejs:node.js:5.5.0:*:*:*:*:*:*:*
nodejs node.js 5.6.0 cpe:2.3:a:nodejs:node.js:5.6.0:*:*:*:*:*:*:*
nodejs node.js 5.7.0 cpe:2.3:a:nodejs:node.js:5.7.0:*:*:*:*:*:*:*
nodejs node.js 5.7.1 cpe:2.3:a:nodejs:node.js:5.7.1:*:*:*:*:*:*:*
nodejs node.js 5.8.0 cpe:2.3:a:nodejs:node.js:5.8.0:*:*:*:*:*:*:*
nodejs node.js 5.9.0 cpe:2.3:a:nodejs:node.js:5.9.0:*:*:*:*:*:*:*
nodejs node.js 5.9.1 cpe:2.3:a:nodejs:node.js:5.9.1:*:*:*:*:*:*:*
nodejs node.js 5.10.0 cpe:2.3:a:nodejs:node.js:5.10.0:*:*:*:*:*:*:*
nodejs node.js 5.10.1 cpe:2.3:a:nodejs:node.js:5.10.1:*:*:*:*:*:*:*
nodejs node.js 5.11.0 cpe:2.3:a:nodejs:node.js:5.11.0:*:*:*:*:*:*:*
nodejs node.js 5.11.1 cpe:2.3:a:nodejs:node.js:5.11.1:*:*:*:*:*:*:*
nodejs node.js 5.12.0 cpe:2.3:a:nodejs:node.js:5.12.0:*:*:*:*:*:*:*
nodejs node.js 6.0.0 cpe:2.3:a:nodejs:node.js:6.0.0:*:*:*:*:*:*:*
nodejs node.js 6.1.0 cpe:2.3:a:nodejs:node.js:6.1.0:*:*:*:*:*:*:*
nodejs node.js 6.2.0 cpe:2.3:a:nodejs:node.js:6.2.0:*:*:*:*:*:*:*
nodejs node.js 6.2.1 cpe:2.3:a:nodejs:node.js:6.2.1:*:*:*:*:*:*:*
nodejs node.js 6.2.2 cpe:2.3:a:nodejs:node.js:6.2.2:*:*:*:*:*:*:*
nodejs node.js 6.3.0 cpe:2.3:a:nodejs:node.js:6.3.0:*:*:*:*:*:*:*
nodejs node.js 6.3.1 cpe:2.3:a:nodejs:node.js:6.3.1:*:*:*:*:*:*:*
nodejs node.js 6.4.0 cpe:2.3:a:nodejs:node.js:6.4.0:*:*:*:*:*:*:*
nodejs node.js 6.5.0 cpe:2.3:a:nodejs:node.js:6.5.0:*:*:*:*:*:*:*
nodejs node.js 6.6.0 cpe:2.3:a:nodejs:node.js:6.6.0:*:*:*:*:*:*:*
nodejs node.js 6.7.0 cpe:2.3:a:nodejs:node.js:6.7.0:*:*:*:*:*:*:*
nodejs node.js 6.8.0 cpe:2.3:a:nodejs:node.js:6.8.0:*:*:*:*:*:*:*
nodejs node.js 6.8.1 cpe:2.3:a:nodejs:node.js:6.8.1:*:*:*:*:*:*:*
nodejs node.js 6.9.0 cpe:2.3:a:nodejs:node.js:6.9.0:*:*:*:*:*:*:*
nodejs node.js 6.9.1 cpe:2.3:a:nodejs:node.js:6.9.1:*:*:*:*:*:*:*
nodejs node.js 6.9.2 cpe:2.3:a:nodejs:node.js:6.9.2:*:*:*:*:*:*:*
nodejs node.js 6.9.3 cpe:2.3:a:nodejs:node.js:6.9.3:*:*:*:*:*:*:*
nodejs node.js 6.9.4 cpe:2.3:a:nodejs:node.js:6.9.4:*:*:*:*:*:*:*
nodejs node.js 6.9.5 cpe:2.3:a:nodejs:node.js:6.9.5:*:*:*:*:*:*:*
nodejs node.js 6.10.0 cpe:2.3:a:nodejs:node.js:6.10.0:*:*:*:*:*:*:*
nodejs node.js 6.10.1 cpe:2.3:a:nodejs:node.js:6.10.1:*:*:*:*:*:*:*
nodejs node.js 6.10.2 cpe:2.3:a:nodejs:node.js:6.10.2:*:*:*:*:*:*:*
nodejs node.js 6.10.3 cpe:2.3:a:nodejs:node.js:6.10.3:*:*:*:*:*:*:*
nodejs node.js 6.11.0 cpe:2.3:a:nodejs:node.js:6.11.0:*:*:*:*:*:*:*
nodejs node.js 6.11.1 cpe:2.3:a:nodejs:node.js:6.11.1:*:*:*:*:*:*:*
nodejs node.js 7.0.0 cpe:2.3:a:nodejs:node.js:7.0.0:*:*:*:*:*:*:*
nodejs node.js 7.1.0 cpe:2.3:a:nodejs:node.js:7.1.0:*:*:*:*:*:*:*

References for CVE-2017-11499

cvelogic Threat Intelligence