Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion.
Volume of CVEs assigned to CWE-197 and their average CVSS base score over time.
Top CVEs that have been assigned this CWE. A single CVE can have multiple CWE assignments, though many have just one.
52 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2022-42475CRITICAL A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier an | Jan 2, 2023 | 9.8 | 98 | YES | YES |
CVE-2025-6965HIGH There exists a vulnerability in SQLite versions before 3.50.2 where the number of aggregate terms could exceed the number of columns available. This could lead to a memory corrupti | Jul 15, 2025 | 7.7 | 80 | NO | YES |
CVE-2024-43639CRITICAL Windows KDC Proxy Remote Code Execution Vulnerability | Nov 12, 2024 | 9.8 | 36 | NO | NO |
CVE-2026-6679HIGH A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when com | Jun 25, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-42944HIGH NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a vulnerability that results in heap overflow when encoding multiple NSID and/or DNS Cookie EDNS and/or EDNS Paddin | May 20, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-50357HIGH Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally. | Jul 14, 2026 | 7.8 | 32 | NO | NO |
CVE-2026-49792HIGH Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally. | Jul 14, 2026 | 7.8 | 32 | NO | NO |
CVE-2026-40404HIGH Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability | Jun 9, 2026 | 7.8 | 32 | NO | NO |
CVE-2026-56650HIGH Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges locally. | Jul 14, 2026 | 7.8 | 31 | NO | NO |
CVE-2026-50332HIGH Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. | Jul 14, 2026 | 7.8 | 31 | NO | NO |
Exploit activity across CVEs assigned to this CWE, including CVEs that carry other CWE assignments.
Social posts that mention CVE IDs assigned to this CWE. This is assigned-CVE activity, not mentions of the CWE label itself.
Media articles that mention CVE IDs assigned to this CWE. This is assigned-CVE coverage, not mentions of the CWE label itself.