Tcpreplay v4.3.0 beta1 contains a heap-based buffer over-read
Published Sep 28, 2018
7.1
HIGHCVSS 3.0
EPSS 1.21%
Description
Tcpreplay v4.3.0 beta1 contains a heap-based buffer over-read. The get_next_packet() function in the send_packets.c file uses the memcpy() function unsafely to copy sequences from the source buffer pktdata to the destination (*prev_packet)->pktdata. This will result in a Denial of Service (DoS) and potentially Information Exposure when the application attempts to process a file.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
AV:N/AC:M/Au:N/C:P/I:N/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.21% (0.01211) | 67.39th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.21% (0.01211) | 67.11th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00111) | 44.83th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.11% (0.00111) | 44.62th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00111) | 42.60th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.78% (0.00777) | 21.50th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
References (2)
- https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay x_refsource_MISCExploitThird Party Advisory
- https://github.com/appneta/tcpreplay/issues/484 x_refsource_MISCExploitPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay | x_refsource_MISCExploitThird Party Advisory | |
| https://github.com/appneta/tcpreplay/issues/484 | x_refsource_MISCExploitPatchThird Party Advisory |
Change history (0)
No recorded changes yet.