CVE-2021-37145
** UNSUPPORTED WHEN ASSIGNED ** A command-injection vulnerability in an authenticated Telnet...
A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
- Record
CVE-2021-37145- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-77
- Updated
- 2026-11-02
CVE List No score
A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
- Record
CVE-2021-37145- Updated
- 2026-11-02
EUVDEUVD-2021-23719 No score
A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
- Record
EUVD-2021-23719- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vp53-9vpq-jfg7
** UNSUPPORTED WHEN ASSIGNED ** A command-injection vulnerability in an authenticated Telnet...
** UNSUPPORTED WHEN ASSIGNED ** A command-injection vulnerability in an authenticated Telnet connection in Poly (formerly Polycom) CX5500 and CX5100 1.3.5 leads an attacker to Privilege Escalation and Remote Code Execution capability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
GHSA-vp53-9vpq-jfg7- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-37145 is a high vulnerability (CVSS 7.2) in Poly Cx5100 Firmware, published September 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.05%, the 81st percentile. No source names a fixed version.