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CVE-2021-41689

7.5 highEPSS 1.9%

High (7.5) in offis dcmtk. EPSS 1.9% chance of exploitation in the next 30 days.

DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.9% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
CWE
CWE-476
Published
Modified
Record from
the NVD, synced

Affected

References

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