Improperly Implemented Security Check for Standard Affecting nss package, versions <2:3.25-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-NSS-18169789
- published22 Jul 2026
- disclosed1 Aug 2018
Introduced: 1 Aug 2018
CVE-2016-8635 (opens in a new tab)How to fix?
Upgrade Echo:latest nss to version 2:3.25-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.