SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-1740

The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services (NSS) before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509…

MEDIUM 5.8EPSS 1.66%

Does this matter?

Lower severity and a low EPSS score (1.66%). Track it; it rarely justifies an emergency change on its own.

Description

The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services (NSS) before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509 certificate during certain handshake traffic.

CVSS 2.0
5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
EPSS
1.66% probability · 75th percentile
CISA KEV
Not listed
Weakness
CWE-310
Affected
mozilla/network security services
Source
security@mozilla.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.