The L2TP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted L2TP control packet with AVP Q.931 Cause Code to execute arbitrary code or cause a denial of service (memory corruption)
Published Oct 6, 2020
9.8
CRITICALCVSS 3.1
EPSS 3.00%
Description
The L2TP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted L2TP control packet with AVP Q.931 Cause Code to execute arbitrary code or cause a denial of service (memory corruption).
Affected products
- Vendor n/a Product MPD: FreeBSD PPP daemon Defaultn/a
- Version All versions prior to version 5.9StatusaffectedConstraints-
- 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 | MPD: FreeBSD PPP daemon | n/a |
|
Configuration 1
- < 5.9
Configuration 2
- ≥ 4.0.0 · < 4.3.17
- 4.4.0
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.00% (0.03004) | 86.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.82% (0.02824) | 84.70th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.01% (0.03013) | 85.40th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.95% (0.08945) | 87.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.01% (0.03013) | 85.70th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.11% (0.01111) | 84.68th | v3 (v2023.03.01) |
| Jun 23, 2024 | 1.11% (0.01111) | 84.58th | v3 (v2023.03.01) |
| Feb 9, 2024 | 1.15% (0.01154) | 84.39th | v3 (v2023.03.01) |
| Dec 8, 2023 | 0.96% (0.00957) | 81.45th | v3 (v2023.03.01) |
| Sep 12, 2023 | 0.68% (0.00676) | 77.40th | v3 (v2023.03.01) |
| Jun 22, 2023 | 0.64% (0.00641) | 76.28th | v3 (v2023.03.01) |
| May 13, 2023 | 0.60% (0.00599) | 75.27th | v3 (v2023.03.01) |
| Mar 21, 2023 | 0.51% (0.00509) | 72.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.49% (0.00491) | 72.42th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.88% (0.01885) | 77.35th | v2 (v2022.01.01) |
| Mar 4, 2023 | 1.88% (0.01885) | 77.35th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.88% (0.01885) | 75.34th | v2 (v2022.01.01) |
| Feb 4, 2022 | 22.97% (0.22972) | 94.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.98% (0.05981) | 81.34th | v1 |
| Jan 6, 2022 | 5.98% (0.05981) | 81.15th | v1 |
| Sep 1, 2021 | 1.40% (0.01398) | 70.96th | v1 |
| Apr 14, 2021 | 1.40% (0.01398) | 0.00th | v1 |
References (2)
- https://sourceforge.net/p/mpd/bugs/70/ x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://sourceforge.net/p/mpd/svn/2377/ x_refsource_MISCPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://sourceforge.net/p/mpd/bugs/70/ | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://sourceforge.net/p/mpd/svn/2377/ | x_refsource_MISCPatchThird Party Advisory |
Change history (0)
No recorded changes yet.