Security readout for executives and security teams
Plain-English summary
CVE-1999-0513 describes a network configuration weakness: ICMP traffic to broadcast addresses is allowed. That can let attackers abuse a network as part of a Smurf-style denial-of-service condition, potentially disrupting availability.
Executive priority
Treat this as a configuration hygiene and availability risk, especially for internet-facing or large internal networks. Prioritize validation during network hardening reviews.
Technical view
The issue is not tied to a named vendor or product in the provided sources. It concerns networks or devices that allow ICMP messages to broadcast addresses, enabling denial-of-service amplification behavior associated with Smurf attacks.
Likely exposure
Exposure is most likely in legacy or misconfigured networks where routers, firewalls, or hosts still permit ICMP traffic to subnet broadcast addresses.
Exploitation context
The provided bundle does not show KEV listing, active exploitation, public exploit status, CVSS scoring, or affected product details. The risk is availability impact through denial of service.
Researcher notes
The source data is sparse: no CVSS, CWE, affected CPEs, or vendor-specific remediation are provided. Analysis should remain scoped to ICMP broadcast allowance and Smurf-style denial-of-service risk.
Mitigation direction
- Check vendor guidance for disabling ICMP to broadcast addresses.
- Review router and firewall controls for broadcast-address ICMP handling.
- Disable forwarding or response behavior for directed broadcast ICMP where supported.
- Apply current network device firmware and security configuration baselines.
- Monitor for abnormal ICMP volume or broadcast-address traffic.
Validation and detection
- Inventory network segments that allow broadcast-address traffic.
- Review router, firewall, and host configurations for ICMP broadcast handling.
- Confirm controls reject ICMP addressed to subnet broadcast addresses.
- Check monitoring data for unusual ICMP spikes or broadcast destinations.
- Document exceptions and business justification for any permitted behavior.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-1999-0513 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0513CVE reference · x_refsource_MISC
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.