SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-5412

A buffer overflow read during SVG filter color value operations, resulting in data exposure.

HIGH 7.5EPSS 4.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A buffer overflow read during SVG filter color value operations, resulting in data exposure. This vulnerability affects Firefox < 52 and Thunderbird < 52.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
4.43% probability · 91th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
mozilla/firefox · mozilla/thunderbird
Source
security@mozilla.org
EPSS trend
0%3%5%21 September 2026: 1.69%22 September 2026: 4.52%27 October 2026: 4.43%21 September 202627 October 2026

EPSS moved from 1.7% on 21 September 2026 to 4.4% on 27 October 2026, peaking at 4.5% on 22 September 2026.

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