# Cisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service Vulnerabilities

CVE record · `CVE-2019-1598`

- **Identifiers:** `CVE-2019-1598`
- **State:** Confirmed
- **Severity:** CVSS 8.6 High
- **Critical:** No
- **CNA:** cisco
- **Weakness (CWE):** [CWE-20](https://cwe.mitre.org/data/definitions/20.html)
- **Tags:** [CWE-20](https://agentprime.io/advisories/tag/cwe-20.md)
- **Technologies:** [Cisco Firepower 4100 Series Next-Generation Firewalls](https://agentprime.io/advisories/technology/cisco-firepower-4100-series-next-generation-firewalls.md) · [Cisco Firepower 9300 Security Appliance](https://agentprime.io/advisories/technology/cisco-firepower-9300-security-appliance.md) · [Cisco MDS 9000 Series Multilayer Switches](https://agentprime.io/advisories/technology/cisco-mds-9000-series-multilayer-switches.md) · [Cisco Nexus 3000 Series Switches](https://agentprime.io/advisories/technology/cisco-nexus-3000-series-switches.md) · [Cisco Nexus 3500 Platform Switches](https://agentprime.io/advisories/technology/cisco-nexus-3500-platform-switches.md) · [Cisco Nexus 7000 and 7700 Series Switches](https://agentprime.io/advisories/technology/cisco-nexus-7000-and-7700-series-switches.md) · [Cisco Nexus 9000 Series Switches in Standalone NX-OS Mode](https://agentprime.io/advisories/technology/cisco-nexus-9000-series-switches-in-standalone-nx-os-mode.md) · [Cisco UCS 6200 and 6300 Fabric Interconnect](https://agentprime.io/advisories/technology/cisco-ucs-6200-and-6300-fabric-interconnect.md)
- **Published:** 7 Mar 2019
- **Updated:** 19 Nov 2024
- **Reviewed by a person:** No

Published by the CVE Program (CNA: cisco) at 7 Mar 2019, 20:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Cisco. Product: Firepower 4100 Series Next-Generation Firewalls.
  - affected: `unspecified to before 2.0.1.201` (custom)
  - affected: `unspecified to before 2.2.2.54` (custom)
  - affected: `unspecified to before 2.3.1.75` (custom)
- Vendor: Cisco. Product: Firepower 9300 Security Appliance.
  - affected: `unspecified to before 2.0.1.201` (custom)
  - affected: `unspecified to before 2.2.2.54` (custom)
  - affected: `unspecified to before 2.3.1.75` (custom)
- Vendor: Cisco. Product: MDS 9000 Series Multilayer Switches.
  - affected: `unspecified to before 8.2(1)` (custom)
- Vendor: Cisco. Product: Nexus 3000 Series Switches.
  - affected: `unspecified to before 7.0(3)I7(1)` (custom)
- Vendor: Cisco. Product: Nexus 3500 Platform Switches.
  - affected: `unspecified to before 7.0(3)I7(2)` (custom)
- Vendor: Cisco. Product: Nexus 7000 and 7700 Series Switches.
  - affected: `unspecified to before 6.2(20)` (custom)
  - affected: `unspecified to before 7.3(2)D1(1)` (custom)
  - affected: `unspecified to before 8.2(1)` (custom)
- Vendor: Cisco. Product: Nexus 9000 Series Switches in Standalone NX-OS Mode.
  - affected: `unspecified to before 7.0(3)I7(1)` (custom)
- Vendor: Cisco. Product: UCS 6200 and 6300 Fabric Interconnect.
  - affected: `unspecified to before 3.2(2b)` (custom)

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 8.6 High, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H`, from CNA (cisco)

- **CISA KEV:** Not listed.
- **EPSS:** 0.025, the 85th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 7 Mar 2019. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2019-1598](https://www.cve.org/CVERecord?id=CVE-2019-1598)
- [NVD: CVE-2019-1598](https://nvd.nist.gov/vuln/detail/CVE-2019-1598)

### References from the CNA

- <https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxosldap> (vendor-advisory, cisco)
- <http://www.securityfocus.com/bid/107394> (vdb-entry, bid)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2019-1598>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2019-1598/>. Everything for agents: <https://agentprime.io/llms.txt>.