This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Losant Arduino MQTT Client prior to V2.7
Published Nov 13, 2018
8.8
HIGHCVSS 3.0
EPSS 9.70%
Description
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Losant Arduino MQTT Client prior to V2.7. User interaction is not required to exploit this vulnerability. The specific flaw exists within the parsing of MQTT PUBLISH packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6436.
Affected products
-
- Version prior to V2.7StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Losant | Losant Arduino MQTT Client | n/a |
|
- < 2.7
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:A/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 (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 9.70% (0.09703) | 95.38th | v5 (v2026.06.15) |
| Sep 22, 2026 | 9.70% (0.09703) | 95.29th | v5 (v2026.06.15) |
| Sep 21, 2026 | 6.95% (0.06949) | 93.90th | v5 (v2026.06.15) |
| Sep 6, 2026 | 9.70% (0.09703) | 95.18th | v5 (v2026.06.15) |
| Sep 5, 2026 | 6.95% (0.06949) | 93.76th | v5 (v2026.06.15) |
| Aug 30, 2026 | 9.70% (0.09703) | 95.16th | v5 (v2026.06.15) |
| Aug 28, 2026 | 6.95% (0.06949) | 93.72th | v5 (v2026.06.15) |
| Aug 24, 2026 | 9.70% (0.09703) | 95.13th | v5 (v2026.06.15) |
| Aug 23, 2026 | 6.95% (0.06949) | 93.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.26% (0.09258) | 94.70th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.24% (0.01243) | 77.43th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.74% (0.03745) | 79.79th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.24% (0.01243) | 77.90th | v4 (v2025.03.14) |
| Feb 16, 2025 | 28.99% (0.28991) | 96.94th | v3 (v2023.03.01) |
| Dec 17, 2024 | 27.96% (0.27956) | 96.82th | v3 (v2023.03.01) |
| Dec 12, 2024 | 50.98% (0.50984) | 97.67th | v3 (v2023.03.01) |
| Oct 23, 2024 | 50.55% (0.50548) | 97.61th | v3 (v2023.03.01) |
| Sep 22, 2024 | 52.42% (0.52419) | 97.62th | v3 (v2023.03.01) |
| Apr 5, 2024 | 47.64% (0.47640) | 97.40th | v3 (v2023.03.01) |
| Dec 31, 2023 | 47.66% (0.47664) | 97.16th | v3 (v2023.03.01) |
| Nov 7, 2023 | 55.33% (0.55332) | 97.28th | v3 (v2023.03.01) |
| Sep 3, 2023 | 78.62% (0.78624) | 97.84th | v3 (v2023.03.01) |
| Jul 8, 2023 | 82.49% (0.82492) | 97.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 84.61% (0.84615) | 97.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.89% (0.01888) | 77.36th | v2 (v2022.01.01) |
| Mar 4, 2023 | 1.89% (0.01888) | 77.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.89% (0.01888) | 75.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.89% (0.01888) | 54.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.37% (0.01374) | 32.00th | v1 |
| Jan 6, 2022 | 1.37% (0.01374) | 31.26th | v1 |
| Sep 1, 2021 | 1.37% (0.01374) | 70.79th | v1 |
| Apr 14, 2021 | 1.37% (0.01374) | 0.00th | v1 |
References (2)
- https://github.com/knolleary/pubsubclient/releases/tag/v2.7 x_refsource_MISCRelease Notes
- https://zerodayinitiative.com/advisories/ZDI-18-1337 x_refsource_MISCRelease NotesThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://github.com/knolleary/pubsubclient/releases/tag/v2.7 | x_refsource_MISCRelease Notes | |
| https://zerodayinitiative.com/advisories/ZDI-18-1337 | x_refsource_MISCRelease NotesThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.