Cisco Small Business RV Series Router Link Layer Discovery Protocol memory corruption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Cisco Small Business RV Series Router and classified as critical. Affected by this issue is some unknown functionality of the component Link Layer Discovery Protocol. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2021-1309. The attack needs to be done within the local network. There is no exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability has been found in Cisco Small Business RV Series Router (Router Operating System) (the affected version is unknown) and classified as critical. This vulnerability affects an unknown code of the component Link Layer Discovery Protocol. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was shared 04/08/2021 as cisco-sa-rv-multi-lldp-u7e4chCe. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2021-1309. There are neither technical details nor an exploit publicly available.
Upgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/13/2020 🔍04/08/2021 🔍
04/08/2021 🔍
04/11/2021 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-rv-multi-lldp-u7e4chCe
Status: Confirmed
CVE: CVE-2021-1309 (🔍)
GCVE (CVE): GCVE-0-2021-1309
GCVE (VulDB): GCVE-100-172624
Entry
Created: 04/08/2021 10:20Updated: 04/11/2021 18:27
Changes: 04/08/2021 10:20 (38), 04/11/2021 18:20 (5), 04/11/2021 18:27 (1)
Complete: 🔍
Cache ID: 216::103
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