Weakness / #4
CWE-416: Use after free in CISA KEV
Use After Free
Answer 95 KEV entries list CWE-416 (Use after free) as of catalog 2026.10.30, 5.4% of the catalog and rank 4 of 198 weaknesses. The most affected vendor is Microsoft (28).
The software keeps using memory after it has been released, which attackers can fill with their own data.
- KEV entries
- 955.4% of catalog
- Vendors
- 13affected
- Ransomware: known
- 1010.5%
- First added
- 2021-11-03
- Latest added
- 2026-10-26
VVendors
TAdditions by year
| Year | Added |
|---|---|
| 2021 | 24 |
| 2022 | 25 |
| 2023 | 16 |
| 2024 | 10 |
| 2025 | 11 |
| 2026 | 9 |
PProducts
| Product | Entries | Share |
|---|---|---|
| Microsoft Windows | 13 | 13.7% |
| Microsoft Internet Explorer | 8 | 8.4% |
| Apple Multiple Products | 7 | 7.4% |
| Adobe Flash Player | 7 | 7.4% |
| Qualcomm Multiple Chipsets | 4 | 4.2% |
| Mozilla Firefox | 3 | 3.2% |
| Android Kernel | 3 | 3.2% |
| Linux Kernel | 3 | 3.2% |
EAll entries
Cite this
95 CISA KEV entries list CWE-416 (Use after free), 5.4% of the catalog. Source: KEV Now analysis of the CISA Known Exploited Vulnerabilities catalog, version 2026.10.30 (released 2026-10-30). https://kevnow.com/cwe/cwe-416/
Source: CISA KEV catalog v2026.10.30, released 2026-10-30. Windows end 2026-10-30.