CVE-2023-36563KEV · OVERDUECWE-20

Microsoft WordPad Information Disclosure Vulnerability

Medium · published October 10, 2023

Patch now

The score understates this — it's already being exploited

CVSS calls it medium at 6.5. It is confirmed in active exploitation. It sits in the 97.5th percentile for exploit probability.

1088
days past CISA
deadline
CVSS v3.1
6.5
EPSS
20%
Percentile
97.5
In the wild
Confirmed
What it is

⚠️ A sneaky information disclosure vulnerability in Microsoft WordPad is spilling the beans on sensitive user data! 📄🔍 Think of WordPad as a not-so-secure filing cabinet in an office. If someone cracks the lock, they could rummage through confidential documents without anyone noticing, uncovering all sorts of juicy secrets. An attacker could potentially gain access to sensitive information such as user data stored within WordPad documents, putting your privacy and security at risk. This could lead to unauthorized exposure of personal or confidential files, which is absolutely devastating for users who rely on the integrity of their documents.

Put simply

Think of WordPad as a not-so-secure filing cabinet in an office. If someone cracks the lock, they could rummage through confidential documents without anyone noticing, uncovering all sorts of juicy secrets. This vulnerability arises from improper handling of files, allowing an attacker to exploit the issue and disclose sensitive information when a malicious file is opened in WordPad.

What to do

An attacker could potentially gain access to sensitive information such as user data stored within WordPad documents, putting your privacy and security at risk. This could lead to unauthorized exposure of personal or confidential files, which is absolutely devastating for users who rely on the integrity of their documents. To mitigate this vulnerability, ensure you update Microsoft WordPad to the latest version immediately. Additionally, avoid opening untrusted documents or files from unknown sources until you're patched up. Stay vigilant! You've got this! Follow these steps to secure your WordPad, and keep those documents safe. 🛡️

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.20318 · 97.5th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2023-10-10T17:08Z
KEV added
2023-10-10 · due 2023-10-31
EPSS history
Timeline
  • 10 OCT 17:08Z
    Microsoft WordPad Information Disclosure Vulnerability
    cvelistv5
  • 10 OCT 00:00Z
    Added to CISA KEV — remediate by Oct 31
    kev