CVE-2022-20714
HIGHEPSS 70th pctlDescription
A vulnerability in the data plane microcode of Lightspeed-Plus line cards for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the line card to reset. This vulnerability is due to the incorrect handling of malformed packets that are received on the Lightspeed-Plus line cards. An attacker could exploit this vulnerability by sending a crafted IPv4 or IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the Lightspeed-Plus line card to reset, resulting in a denial of service (DoS) condition for any traffic that traverses that line card.
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:N/UI:N/S:C/C:N/I:N/A:H
Exploit Intelligence
Elevated risk: more likely to be exploited than 70% of all known CVEs.
References
Related Vulnerabilities
Other CWE-126 (Buffer Over-read) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-49285 | High | 8.6 | 89% | - | Fix |
| CVE-2017-7668 | High | 7.5 | 57% | - | Fix |
| CVE-2017-7679 | Critical | 9.8 | 39% | - | Fix |
| CVE-2025-21277 | High | 7.5 | 38% | - | Fix |
| CVE-2024-38071 | High | 7.5 | 36% | - | Fix |
| CVE-2009-2495 | Medium | 6.5 | 34% | - | - |
Common questions
How do I fix CVE-2022-20714?
No published fix for CVE-2022-20714 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2022-20714 being actively exploited?
Not that we know of. CVE-2022-20714 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 70% of all scored CVEs.
How severe is CVE-2022-20714?
CVE-2022-20714 has a CVSS v3 base score of 8.6, 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.
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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.