CVE-2019-1962
No exploitation reported by the sources we read.
- Published2019-08-28
- Fixed in9.2 · 8.1 · 7.3\(5\)n1\(1\) · 7.3\(4\)d1\(1\) · 7.1\(5\)n1\(1b\) · 7.0\(3\)i4\(9\)
- WeaknessCWE-20
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of TCP packets when processed by the Cisco Fabric Services over IP (CFSoIP) feature. An attacker could exploit this vulnerability by sending a malicious Cisco Fabric Services TCP packet to an affected device. A successful exploit could allow the attacker to cause process crashes, resulting in a device reload and a DoS condition. Note: There are three distribution methods that can be configured for Cisco Fabric Services. This vulnerability affects only distribution method CFSoIP, which is disabled by default. See the Details section for more information.
Timeline
dates in UTC- 2019-08-2819:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-1962?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-1962?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 9.2 | ≥ 7.0\(3\)f, < 9.2 | 9.2 | NVD |
| 8.1 | ≥ 7.3, < 8.1 | 8.1 | NVD |
| 7.3 | ≥ 7.3, < 7.3\(5\)n1\(1\) | 7.3\(5\)n1\(1\) | NVD |
| 7.x | ≥ 7.2, < 7.3\(4\)d1\(1\) | 7.3\(4\)d1\(1\) | NVD |
| 7.1 | < 7.1\(5\)n1\(1b\) | 7.1\(5\)n1\(1b\) | NVD |
| 7.0 | < 7.0\(3\)i4\(9\) | 7.0\(3\)i4\(9\) | NVD |
| 7.0 | ≥ 7.0\(3\)i7, < 7.0\(3\)i7\(6\) | 7.0\(3\)i7\(6\) | NVD |
| 6.2 | ≥ 5.2, < 6.2\(29\) | 6.2\(29\) | NVD |
| 6.2 | < 6.2\(22\) | 6.2\(22\) | NVD |
| 6.0 | < 6.0\(2\)a8\(11\) | 6.0\(2\)a8\(11\) | NVD |
| 4.0 | ≥ 4.0, < 4.0\(2d\) | 4.0\(2d\) | NVD |
| 3.2 | < 3.2\(3i\) | 3.2\(3i\) | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Cisco nx-os to 9.2 · 8.1 · 7.3\(5\)n1\(1\) · 7.3\(4\)d1\(1\) · 7.1\(5\)n1\(1b\) · 7.0\(3\)i4\(9\) · 7.0\(3\)i7\(6\) · 6.2\(29\)
Advisories and patches
- tools.cisco.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2019-08-28
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-1962?
Is CVE-2019-1962 actively exploited?
What is the CVSS score for CVE-2019-1962?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.