No exploitation reportedFix available

CVE-2019-16762

Q: Is CVE-2019-16762 actively exploited?

Active exploitation of CVE-2019-16762 has not been confirmed. Its EPSS score was 1.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-16762?

CVE-2019-16762 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-11-15
Fixed in0.21.4
WeaknessCWE-20

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

A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slpjs npm package. An attacker could create a specially crafted Bitcoin script in order to cause a hard-fork from the SLP consensus. Affected users can upgrade to any version >= 0.21.4.

Timeline

dates in UTC

2019-11-1523:15CVE 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-2019-16762?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-16762?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Simpleledger slpjs

Branch	Affected	Fixed in	Source
0.21	< 0.21.4	0.21.4	NVD · OSV

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

Fix

Update Simpleledger slpjs to 0.21.4

Advisories and patches

github.comPatch
github.comPatch

Detection

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

Sources

CNACVSS 3.15.7read 2026-10-23
NVDCVSS 3.16.1read 2026-10-23
NVDCVSS 2.04.9read 2026-10-23
CNAweakness (CWE)CWE-20read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H
Published: 2019-11-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-16762?

Is CVE-2019-16762 actively exploited?

Active exploitation of CVE-2019-16762 has not been confirmed. Its EPSS score was 1.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-16762?

CVE-2019-16762 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H.

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