CVE-2021-41689 is a head-based overflow vulnerability affecting DCMTK through version 3.6.6. Specifically, the dcmqrdb program improperly handles string copies when querying its database, leading to a crash if a null result is returned. This vulnerability carries a CVSS score of 7.5 (High) due to its network-based attack vector, low attack complexity, and high impact on availability, allowing an unauthenticated attacker to launch a denial-of-service (DoS) attack. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.6.6CPE matchmatch criteria | cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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