CVE-2003-0347

Heap-based buffer overflow in VBE.DLL and VBE6.DLL of Microsoft Visual Basic for Applications (VBA) SDK 5.0 through 6.3 allows remote attackers to execute…

published September 4, 2003

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.0th percentile for exploit probability.

CVSS
—
EPSS
55%
Percentile
99.0
In the wild
Unconfirmed
What it is

⚠️ A seemingly harmless document could open the door to a heap of trouble! An attacker can execute arbitrary code through a long ID parameter in VBE.DLL or VBE6.DLL — it’s like a mischievous chef slipping an extra ingredient into your favorite recipe without you noticing! Think of it as a restaurant that serves dishes without checking if the special ingredient is actually safe. A long ID parameter is like a hidden spice that overflows and disrupts the entire meal, allowing an unwanted flavor (or code) to take over your dish (or system)! If exploited, this vulnerability could let an attacker run their malicious code, potentially compromising your whole system. While there’s no known exploitation yet, the mere possibility of such a breach makes it critical to pay attention. Don't let an uninvited guest ruin your feast!

Put simply

Think of it as a restaurant that serves dishes without checking if the special ingredient is actually safe. A long ID parameter is like a hidden spice that overflows and disrupts the entire meal, allowing an unwanted flavor (or code) to take over your dish (or system)! This vulnerability stems from a heap-based buffer overflow in the VBE.DLL and VBE6.DLL libraries of Microsoft Visual Basic for Applications (VBA) SDK versions 5.0 to 6.3, allowing an attacker to execute arbitrary code by providing a document with a specially crafted long ID parameter.

What to do

If exploited, this vulnerability could let an attacker run their malicious code, potentially compromising your whole system. While there’s no known exploitation yet, the mere possibility of such a breach makes it critical to pay attention. Don't let an uninvited guest ruin your feast! To protect yourself, check your VBA SDK version and upgrade to a more secure version if you're still on 5.0 to 6.3. Additionally, consider implementing strict input validation for any parameters that could be used in documents. Always stay alert for software updates and patches! You’ve got this! By taking these steps, you’ll be sure to keep those pesky vulnerabilities at bay! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.54873 · 99.0th percentile
Published
2003-09-04T04:00Z
EPSS history
Timeline
  • 04 SEP 04:00Z
    Heap-based buffer overflow in VBE.DLL and VBE6.DLL of Microsoft Visual Basic for Applications (VBA) SDK 5.0 through 6.3 allows remote attackers to execute…
    cvelistv5