A heap-based buffer overflow flaw was found in libmodbus in function modbus_reply() in src/modbus.c
Published Aug 29, 2022
7.8
HIGHCVSS 3.1
EPSS 0.46%
Description
A heap-based buffer overflow flaw was found in libmodbus in function modbus_reply() in src/modbus.c.
Affected products
- Vendor n/a Product Libmodbus Defaultn/a
- Version Fixed in v3.1.7StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Libmodbus | n/a |
|
Configuration 2
- 7.0
- 35
Configuration 3
- 10.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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.
No CVSS v2.0 score for this CVE.
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.46% (0.00455) | 37.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00432) | 34.22th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00033) | 6.20th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00078) | 35.36th | v3 (v2023.03.01) |
| Apr 19, 2024 | 0.06% (0.00060) | 24.55th | v3 (v2023.03.01) |
| Feb 9, 2024 | 0.06% (0.00055) | 20.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00050) | 17.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 5, 2022 | 1.02% (0.01018) | 38.79th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Aug 30, 2022 | 0.89% (0.00890) | 28.50th | v2 (v2022.01.01) |
References (5)
- https://bugzilla.redhat.com/show_bug.cgi?id=2045571 x_refsource_MISCIssue TrackingThird Party Advisory
- https://github.com/stephane/libmodbus/commit/b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6 x_refsource_MISCPatchThird Party Advisory
- https://github.com/stephane/libmodbus/issues/614 x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00007.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2045571 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://github.com/stephane/libmodbus/commit/b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/stephane/libmodbus/issues/614 | x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2022/09/msg00007.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html |
Change history (0)
No recorded changes yet.