In radare2 through 4.0, there is an integer overflow for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c
Published Dec 5, 2019
7.8
HIGHCVSS 3.1
EPSS 2.54%
Description
In radare2 through 4.0, there is an integer overflow for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c. This integer overflow will result in a Use-After-Free for the buffer tokens, which can be filled with arbitrary malicious data after the free. This allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted input.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.54% (0.02536) | 84.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.51% (0.02515) | 82.70th | v5 (v2026.06.15) |
| Nov 21, 2025 | 3.05% (0.03052) | 86.19th | v4 (v2025.03.14) |
| Nov 18, 2025 | 1.24% (0.01236) | 77.43th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.93% (0.02925) | 85.19th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.61% (0.05612) | 83.47th | v4 (v2025.03.14) |
| Jul 20, 2024 | 2.39% (0.02394) | 90.02th | v3 (v2023.03.01) |
| Aug 21, 2023 | 2.39% (0.02394) | 88.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.21% (0.01208) | 83.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.16% (0.03161) | 83.93th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.16% (0.03161) | 82.35th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.89% (0.05893) | 77.44th | v2 (v2022.01.01) |
| Feb 3, 2022 | 9.43% (0.09434) | 86.82th | v1 |
| Jan 6, 2022 | 9.43% (0.09434) | 86.67th | v1 |
| Jan 5, 2022 | 2.27% (0.02269) | 78.42th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.27% (0.02269) | 0.00th | v1 |
References (3)
- https://github.com/radareorg/radare2/issues/15543 x_refsource_MISCExploitPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRQXCOVFWZIIMAZIAAFAVQGZOS7LGHXP/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YQTOWEDFXDTGTD6D4NHRB4FUURQSTTEN/ vendor-advisoryx_refsource_FEDORA
| Link | Providers | Tags |
|---|---|---|
| https://github.com/radareorg/radare2/issues/15543 | x_refsource_MISCExploitPatchThird Party Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRQXCOVFWZIIMAZIAAFAVQGZOS7LGHXP/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YQTOWEDFXDTGTD6D4NHRB4FUURQSTTEN/ | vendor-advisoryx_refsource_FEDORA |
Change history (0)
No recorded changes yet.