Vulnerability in Cisco Nx-Os Software
CVE-2019-1595
A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an incorrect allocation of an internal interface index. An adjacent attacker with the ability to submit a crafted FCoE packet that crosses affected interfaces could trigger this vulnerability. A successful exploit could allow the attacker to cause a packet loop and high throughput on the affected interfaces, resulting in a DoS condition. This vulnerability has been fixed in version 7.3(5)N1(1).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (50.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Cisco Nx-Os Software — versions 7.3(5)N1(1)
- Cisco Nexus 5600
- Cisco Nexus 6000
- Cisco Nx-Os
Weakness classification (CWE)
References
- www.securityfocus.com/bid/107320 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306… (vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1595?
- CVE-2019-1595 is a high-severity vulnerability in Cisco Nx-Os Software, classified under Improper Control of Dynamically-Managed Code Resources. CVSS score: 7.4/10. Published 2019-03-06.
- How severe is CVE-2019-1595?
- High severity. CVSS v3 base score is 7.4 out of 10.