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Vulnerabilities/CVE-2018-0179Public Intelligence Dossier
Source: cisco · Limited verification•Last verified: •Collection Degraded
CVE-2018-0179ListedHIGH (raw)CVSS 7.1CWE-399

Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition

Published: 29 Mar 2018•Last updated: 17 Jun 2026, 07:00 AM IST•Source identifier: psirt@cisco.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added03 Mar 2022
Due17 Mar 2022
RansomwareUnknown
CVSS score
7.1HIGH (raw)
AV:N/AC:M/Au:N/C:N/I:N/A:C
Metric sourcenvd@nist.gov
EPSS probability
4.9%0.049
Percentile92nd
Weakness type
CWE-399
NVD-CWE-noinfo
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; SOC ecosystem technology relevance; HIGH severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • cisco ios · 15.3\(00.00.19\)sy; 15.4\(01\)ia001.100; 15.6\(01.22\)t; 15.4\(03\)m4.1; 15.4\(2\)cg; 15.4\(2\)t; 15.4\(3\)m · NVD CPE · Source
NVD applicability prerequisites: cpe:2.3:h:cisco:3925_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3925e_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3945_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3945e_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1000_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1100-4g\/6g_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1100-4g_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1100-4gltegb_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1100-4gltena_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:*:*:*:*:*:*:*. These are conditions, not proof that an environment is exposed or unaffected.
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed)

Exposure

  1. Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure

Exploitation evidence

  1. Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure

Response

  1. Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure

CISA KEV Record

Catalog entry
03 Mar 2022
Required action due
17 Mar 2022
Known ransomware use
Unknown

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
psirt@cisco.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:cisco:ios:15.3\(00.00.19\)sy:*:*:*:*:*:*:*, cpe:2.3:o:cisco:ios:15.4\(01\)ia001.100:*:*:*:*:*:*:*, cpe:2.3:o:cisco:ios:15.6\(01.22\)t:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3925_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3925e_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3945_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:3945e_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:o:cisco:ios:15.4\(03\)m4.1:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1000_integrated_services_router:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:1100-4g\/6g_integrated_services_router:-:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-03-03tools.cisco.comSource recordnvd.nist.govSource recordcisa.govSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2018-0179
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2018-0179
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2018-0179"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.