CVE-2020-3574
HIGHEPSS 94th pctlDescription
A vulnerability in the TCP packet processing functionality of Cisco IP Phones could allow an unauthenticated, remote attacker to cause the phone to stop responding to incoming calls, drop connected calls, or unexpectedly reload. The vulnerability is due to insufficient TCP ingress packet rate limiting. An attacker could exploit this vulnerability by sending a high and sustained rate of crafted TCP traffic to the targeted device. A successful exploit could allow the attacker to impact operations of the phone or cause the phone to reload, leading to a denial of service (DoS) condition.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
High risk: more likely to be exploited than 94% of all known CVEs.
References
Related Vulnerabilities
Other CWE-371 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2018-0282 | Medium | 6.8 | 2.0% | - | - |
| CVE-2020-3200 | High | 7.7 | 1.7% | - | - |
| CVE-2019-1977 | Medium | 6.8 | 1.5% | - | - |
| CVE-2020-3422 | High | 7.5 | 1.3% | - | - |
| CVE-2024-20455 | High | 8.6 | 0.7% | - | - |
| CVE-2020-3385 | Medium | 6.5 | 0.5% | - | Fix |
Common questions
How do I fix CVE-2020-3574?
Published advisories record a fix for 7 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2020-3574 being actively exploited?
Not that we know of. CVE-2020-3574 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 8.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 94% of all scored CVEs.
How severe is CVE-2020-3574?
CVE-2020-3574 has a CVSS v3 base score of 7.5, rated high. 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.
What does CVE-2020-3574 affect?
Published advisories record a fix for ip dect 210 firmware (NVD), ip dect 6825 firmware (NVD), ip phone 8811 firmware (NVD), ip phone 8841 firmware (NVD), and 3 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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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.