Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-34714 | First vendor Publication | 2021-09-23 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.4 | ||
| Base Score | 7.4 | Environmental Score | 7.4 |
| impact SubScore | 4 | Temporal Score | 7.4 |
| Exploitabality Sub Score | 2.8 | ||
| Attack Vector | Adjacent | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Changed | Confidentiality Impact | None |
| Integrity Impact | None | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:A/AC:M/Au:N/C:N/I:N/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 5.7 | Attack Range | Adjacent network |
| Cvss Impact Score | 6.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 5.5 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A vulnerability in the Unidirectional Link Detection (UDLD) feature of Cisco FXOS Software, Cisco IOS Software, Cisco IOS XE Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload. This vulnerability is due to improper input validation of the UDLD packets. An attacker could exploit this vulnerability by sending specifically crafted UDLD packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Note: The UDLD feature is disabled by default, and the conditions to exploit this vulnerability are strict. An attacker must have full control of a directly connected device. On Cisco IOS XR devices, the impact is limited to the reload of the UDLD process. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34714 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
CPE : Common Platform Enumeration
Sources (Detail)
| Source | Url |
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Alert History
| Date | Informations |
|---|---|
| 2025-03-29 02:51:17 |
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| 2025-03-28 13:25:42 |
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| 2024-11-28 13:57:53 |
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| 2024-10-09 02:22:28 |
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| 2024-10-08 02:22:49 |
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| 2024-10-03 13:19:03 |
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| 2024-10-03 02:23:47 |
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| 2024-08-02 13:26:12 |
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| 2024-08-02 01:25:52 |
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| 2024-07-26 02:18:28 |
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| 2024-07-04 02:17:55 |
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| 2024-03-07 02:18:35 |
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| 2024-03-05 13:16:12 |
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| 2024-02-02 02:26:23 |
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| 2024-02-01 12:24:08 |
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| 2023-11-07 21:33:56 |
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| 2023-10-26 13:46:33 |
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| 2023-10-26 02:14:02 |
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| 2023-10-20 02:14:22 |
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| 2023-10-19 02:13:30 |
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| 2023-10-06 02:13:45 |
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| 2023-09-20 02:12:40 |
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| 2023-09-19 13:15:38 |
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| 2023-09-06 02:13:55 |
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| 2023-09-05 13:20:40 |
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| 2023-09-05 01:23:39 |
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| 2023-09-02 13:19:15 |
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| 2023-09-02 01:24:00 |
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| 2023-08-12 13:25:22 |
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| 2023-08-12 01:23:14 |
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| 2023-08-11 13:17:37 |
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| 2023-08-11 01:24:00 |
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| 2023-08-06 13:15:36 |
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| 2023-08-06 01:22:59 |
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| 2023-08-04 13:15:58 |
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| 2023-08-04 01:23:20 |
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| 2023-07-14 13:16:01 |
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| 2023-07-14 01:23:08 |
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| 2023-04-21 09:27:43 |
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| 2023-04-21 02:18:59 |
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| 2023-04-21 00:27:40 |
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| 2023-04-20 21:27:36 |
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| 2023-03-29 02:18:11 |
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| 2023-03-28 12:23:21 |
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| 2023-03-17 02:05:55 |
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| 2022-12-24 02:04:13 |
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| 2022-10-28 09:27:52 |
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| 2022-10-27 21:27:43 |
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| 2022-10-11 13:07:50 |
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| 2022-10-11 01:22:48 |
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| 2022-09-04 02:04:09 |
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| 2022-08-03 02:00:52 |
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| 2022-07-16 01:59:24 |
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| 2022-05-05 01:58:10 |
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| 2022-04-26 01:58:59 |
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| 2022-04-08 01:57:03 |
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| 2022-04-06 01:55:46 |
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| 2022-03-09 01:54:23 |
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| 2022-03-08 01:54:40 |
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| 2021-12-04 01:47:51 |
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| 2021-11-06 12:50:00 |
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| 2021-10-14 01:46:48 |
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| 2021-10-13 17:23:01 |
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| 2021-09-24 01:45:41 |
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| 2021-09-24 01:45:18 |
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| 2021-09-23 17:22:52 |
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| 2021-09-23 09:22:55 |
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