CRITICAL

CVE-2019-17006

Q: What is CVE-2019-17006?

In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling the library did not perform a sanity check on the inputs it could result in a crash due to a buffer overflow.

Q: Is CVE-2019-17006 actively exploited?

Active exploitation of CVE-2019-17006 has not been confirmed. Its EPSS score was 3.6% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-17006?

CVE-2019-17006 has a CVSS v3 base score of 9.8 (CRITICAL severity).

CVSS v3

9.8

CRITICAL

EPSS Score

3.6 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for nss.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

CVE-2019-17006 Red Hat Product Security561 products fixed · 6 known affected
nss: Check length of inputs for cryptographic primitives
nss as a component of Red Hat Enterprise Linux 6 · nss-devel as a component of Red Hat Enterprise Linux 6 · nss-pkcs11-devel as a component of Red Hat Enterprise Linux 6
RHSA-2021:1026 Red Hat Product Security49 products fixed
Red Hat Security Advisory: nss-softokn security update
RHSA-2021:0949 Red Hat Product Security1 product fixed
Red Hat Security Advisory: Red Hat OpenShift Do openshift/odo-init-image 1.1.3 security update
RHSA-2021:0876 Red Hat Product Security142 products fixed
Red Hat Security Advisory: nss and nss-softokn security update
RHSA-2021:0758 Red Hat Product Security38 products fixed
Red Hat Security Advisory: nss-softokn security update
ICSA-21-040-04 CISA8 known affected
Siemens RUGGEDCOM ROX II
Siemens RUGGEDCOM ROX MX5000: All versions < V2.14.0 · Siemens RUGGEDCOM ROX RX1400: All versions < V2.14.0 · Siemens RUGGEDCOM ROX RX1500: All versions < V2.14.0

2 more advisories

Full record on NVD

Description

In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling the library did not perform a sanity check on the inputs it could result in a crash due to a buffer overflow.

Technical details

Published: 2020-10-22

Frequently asked questions

What is CVE-2019-17006?

Is CVE-2019-17006 actively exploited?

Active exploitation of CVE-2019-17006 has not been confirmed. Its EPSS score was 3.6% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-17006?

CVE-2019-17006 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Running nss? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? CVE Watch alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database