CVE-2021-1379
6.5 · MEDIUMOverview
CVE-2021-1379 is a medium-severity vulnerability affecting cisco ip_conference_phone_7832_firmware. It was published on November 18, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.
These vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no work
Remediation
Check the references section for vendor advisories and patches from cisco. Update ip_conference_phone_7832_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | ip_conference_phone_7832_firmware | >= 0, < 12.8\(1\) | Affected |
| cisco | ip_conference_phone_7832_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_conference_phone_8832_firmware | >= 0, < 12.8\(1\) | Affected |
| cisco | ip_conference_phone_8832_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_6821_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_6841_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_6851_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_6861_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_6871_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_7811_firmware | >= 0, < 12.8\(1\) | Affected |
| cisco | ip_phone_7811_with_multiplatform_firmware | >= 0, < 11.3\(2\) | Affected |
| cisco | ip_phone_7821_firmware | >= 0, < 12.8\(1\) | Affected |
Frequently Asked Questions
What is CVE-2021-1379?
CVE-2021-1379 is a medium-severity vulnerability affecting cisco ip_conference_phone_7832_firmware. It was published on November 18, 2024 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2021-1379?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-1379?
Check the references section for vendor advisories and patches from cisco. Update ip_conference_phone_7832_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-1379?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-1379 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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