Security readout for executives and security teams
This issue can let someone on the same local network segment crash affected Cisco switching or firewall platforms by abusing LLDP handling. A successful attack can force an unexpected reload, disrupting network availability. The source bundle does not show active exploitation. Exposure is most likely where affected Cisco FXOS or NX-OS devices process LLDP on interfaces reachable from untrusted or less-trusted adjacent network segments. Treat as high priority for network infrastructure because successful exploitation can interrupt critical connectivity. It is less urgent than internet-remote flaws because the attacker needs adjacent network access, but exposed access-layer or shared environments deserve prompt review. Mitigation focus: Check Cisco advisory for affected releases and fixed software guidance.; Inventory Cisco FXOS and NX-OS devices in switching and firewall roles.; Prioritize devices with LLDP enabled on less-trusted adjacent links..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2018-0395 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20181017 Cisco FXOS and NX-OS Software Link Layer Discovery Protocol Denial of Service VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.