Security readout for executives and security teams
This issue can let someone on an adjacent network segment crash affected Cisco IOS XR devices by abusing UDP broadcast forwarding. The outage can require manual intervention to recover, so the business risk is service disruption on routing infrastructure rather than data theft. Exposure is limited to Cisco IOS XR platforms on listed releases where IPv4 helper address configuration exists. The attacker must be adjacent, so internet-wide exposure is not supported by the sources. Treat this as a high-priority infrastructure availability issue if IOS XR routers use IPv4 helper addresses. It does not indicate data compromise, but affected devices may stop forwarding traffic and require hands-on recovery. Mitigation focus: Review Cisco advisory cisco-sa-20180418-iosxr for vendor-approved fixed releases or mitigations.; Inventory Cisco IOS XR devices running 6.3.1, 6.2.3, or earlier.; Identify interfaces with at least one configured IPv4 helper address..
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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CWE-399: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-0241 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxrCVE reference · x_refsource_CONFIRM
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.
Resource Management Errors
Resource Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.