SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-3909

Microsoft Internet Explorer 6 through 8 allows remote attackers to read content from a different (1) domain or (2) zone via crafted characters in Cascading Style Sheets (CSS) token sequences, aka "Internet Explorer Information Disclosure Vulnerability."

MEDIUM 4.3EPSS 15.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 15.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Internet Explorer 6 through 8 allows remote attackers to read content from a different (1) domain or (2) zone via crafted characters in Cascading Style Sheets (CSS) token sequences, aka "Internet Explorer Information Disclosure Vulnerability."

CVSS 2.0
4.3 MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
EPSS
15.02% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-200
Affected
microsoft/internet explorer
Source
secure@microsoft.com
EPSS trend
0%10%20%27 September 2026: 15.02%4 November 2026: 15.02%27 September 20264 November 2026

EPSS moved from 15.0% on 27 September 2026 to 15.0% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

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