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PatchSiren cyber security CVE debrief

CVE-2018-0161 Cisco CVE debrief

CVE-2018-0161 is a Cisco IOS Software vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. The supplied record identifies it as a Cisco IOS Software resource management errors issue and directs defenders to apply updates per vendor instructions. Because it appears in the KEV catalog, it should be treated as a confirmed exploitation risk rather than a theoretical issue.

Vendor
Cisco
Product
IOS Software
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-03-03
Original CVE updated
2022-03-03
Advisory published
2022-03-03
Advisory updated
2022-03-03

Who should care

Cisco IOS Software operators, network administrators, security teams, and asset owners responsible for Cisco-managed network infrastructure should prioritize this CVE, especially where IOS devices are internet-facing or support critical connectivity.

Technical summary

The provided source corpus does not include affected versions, exploit details, or a CVSS score. What it does show is that CISA classifies CVE-2018-0161 as a Cisco IOS Software resource management errors vulnerability and marks it as known exploited. The recommended remediation in the KEV entry is to apply updates per vendor instructions.

Defensive priority

High. CISA placed this CVE in the Known Exploited Vulnerabilities catalog and assigned a near-term remediation deadline, indicating elevated operational risk and the need for prompt patching or vendor-guided mitigation.

Recommended defensive actions

  • Identify all Cisco IOS Software assets in scope.
  • Review Cisco's vendor guidance for CVE-2018-0161 and apply the recommended updates or mitigations.
  • Prioritize exposed, critical, and externally reachable systems first.
  • Track remediation status against the CISA KEV due date and confirm completion.
  • Verify whether any compensating controls or maintenance windows are needed to complete the update safely.

Evidence notes

The supplied CISA KEV source item states: vendorProject = Cisco, product = IOS Software, vulnerabilityName = Cisco IOS Software Resource Management Errors Vulnerability, dateAdded = 2022-03-03, dueDate = 2022-03-17, knownRansomwareCampaignUse = Unknown, requiredAction = Apply updates per vendor instructions, and isKev = true. The notes field references the NVD CVE detail page for CVE-2018-0161. No CVSS score or affected-version range was included in the corpus.

Official resources

This debrief uses the supplied CISA KEV publication date of 2022-03-03 for catalog context; it does not imply that CVE-2018-0161 was first disclosed on that date. The record's KEV due date is 2022-03-17.