CVE-2003-0818 describes multiple integer overflows in the Microsoft ASN.1 library (MSASN1.DLL), impacting Windows NT 4.0, 2000, and XP. These flaws allow remote attackers to execute arbitrary code by crafting malicious ASN.1 BER encodings, leading to heap data overwrites or modified bit strings. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not on the KEV catalog, exploit modules exist in Metasploit and ExploitDB, indicating readily available exploit code, though there is minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* | ||
enterpriseCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.