CVE-2019-11727

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68.

Metrics

CVSS 3.0 5.3/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-295

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 68

References

Timeline

Published: Jul 23, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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