CVE-2021-1406
MEDIUMDescription
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to improper inclusion of sensitive information in downloadable files. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a specific set of commands. A successful exploit could allow the attacker to obtain hashed credentials of system users. To exploit this vulnerability an attacker would need to have valid user credentials with elevated privileges.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Moderate risk: more likely to be exploited than 62% of all known CVEs.
References
Related Vulnerabilities
Other CWE-538 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-51977 | Medium | 5.3 | 78% | - | - |
| CVE-2019-6851 | High | 7.5 | 30% | - | - |
| CVE-2017-9947 | Medium | 5.3 | 7.3% | - | Fix |
| CVE-2018-11798 | Medium | 6.5 | 4.9% | - | Fix |
| CVE-2017-16770 | Medium | 6.5 | 1.8% | - | Fix |
| CVE-2018-10590 | High | 7.5 | 1.7% | - | Fix |
Common questions
How do I fix CVE-2021-1406?
No published fix for CVE-2021-1406 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2021-1406 being actively exploited?
Not that we know of. CVE-2021-1406 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 62% of all scored CVEs.
How severe is CVE-2021-1406?
CVE-2021-1406 has a CVSS v3 base score of 4.9, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.