SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2014-1544

Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7, allows remote attackers to…

HIGH 10.0EPSS 6.11%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (6.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7, allows remote attackers to execute arbitrary code via vectors that trigger certain improper removal of an NSSCertificate structure from a trust domain.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
6.11% probability · 93th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
mozilla/firefox · mozilla/firefox esr · mozilla/network security services · mozilla/thunderbird
Source
security@mozilla.org
EPSS trend
0%5%10%26 October 2026: 6.11%26 October 202626 October 2026

EPSS 6.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.