7.5
CVE-2020-35684
- EPSS 0.7%
- Veröffentlicht 19.08.2021 12:15:08
- Zuletzt bearbeitet 21.11.2024 05:27:50
- Quelle cve@mitre.org
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An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the length of the TCP payload within the TCP checksum computation function. When the IP payload size is set to be smaller than the size of the IP header, the TCP checksum computation function may read out of bounds (a low-impact write-out-of-bounds is also possible).
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Hcc-embedded ≫ Nichestack Version3.0
Siemens ≫ Sentron 3wl Com35 Firmware Version < 1.2.0
Siemens ≫ Sentron 3wa Com190 Firmware Version < 2.0.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.7% | 0.696 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
| nvd@nist.gov | 5 | 10 | 2.9 |
AV:N/AC:L/Au:N/C:N/I:N/A:P
|
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.