No exploitation reportedFix available

CVE-2017-15896

Q: Is CVE-2017-15896 actively exploited?

Active exploitation of CVE-2017-15896 has not been confirmed. Its EPSS score was 2.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-15896?

CVE-2017-15896 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

No exploitation reported by the sources we read.

Published2017-12-11
Fixed in9.2.1 · 8.9.3 · 6.12.2 · 4.8.7

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Node.js was affected by OpenSSL vulnerability CVE-2017-3737 in regards to the use of SSL_read() due to TLS handshake failure. The result was that an active network attacker could send application data to Node.js using the TLS or HTTP2 modules in a way that bypassed TLS authentication and encryption.

Timeline

dates in UTC

2017-12-1121:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-15896?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-15896?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Node.js

Branch	Affected	Fixed in	Source
9.x	≥ 9.0.0, < 9.2.1	9.2.1	NVD
8.9	≥ 8.9.0, < 8.9.3	8.9.3	NVD
6.x	≥ 6.9.0, < 6.12.2	6.12.2	NVD
4.x	≥ 4.2.0, < 4.8.7	4.8.7	NVD
4.x	≥ 4.0.0, ≤ 4.1.2	no fix published	NVD
6.x	≥ 6.0.0, ≤ 6.8.1	no fix published	NVD
8.x	≥ 8.0.0, ≤ 8.8.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Node.js to 9.2.1 · 8.9.3 · 6.12.2 · 4.8.7

Advisories and patches

nodejs.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.1read 2026-10-23
NVDCVSS 2.06.4read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published: 2017-12-11
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-15896?

Is CVE-2017-15896 actively exploited?

Active exploitation of CVE-2017-15896 has not been confirmed. Its EPSS score was 2.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-15896?

CVE-2017-15896 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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