SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-3845

Use-after-free vulnerability in Apple Safari 5.1.2, when a plug-in with a blocking function is installed, allows user-assisted remote attackers to execute arbitrary code via a crafted web page that is accessed during user interaction with the plug-in,…

HIGH 7.6EPSS 2.80%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Use-after-free vulnerability in Apple Safari 5.1.2, when a plug-in with a blocking function is installed, allows user-assisted remote attackers to execute arbitrary code via a crafted web page that is accessed during user interaction with the plug-in, leading to improper coordination between an API call and the plug-in unloading functionality, as demonstrated by the Adobe Flash and RealPlayer plug-ins.

CVSS 2.0
7.6 HIGHAV:N/AC:H/Au:N/C:C/I:C/A:C
EPSS
2.80% probability · 86th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-399
Affected
apple/safari
Source
PSIRT-CNA@flexerasoftware.com
EPSS trend
0%3%5%26 October 2026: 2.80%26 October 202626 October 2026

EPSS 2.8% since 26 October 2026; no change recorded yet. 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.