Exploited CVEs / Cisco / CVE-2018-0179
CVE-2018-0179
Cisco IOS Software Denial-of-Service Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2022-03-17 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Cisco Security Advisories (PSIRT), linked below.
Actively exploited Cisco IOS Software vulnerability, Medium severity, CVSS 5.9. Added to the CISA KEV catalog 2022-03-03.
Risk summary
Updated July 27, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2018-0179
A twin of CVE-2018-0180, this flaw in the same Cisco IOS Login Enhancements feature also lets an unauthenticated remote attacker trigger a system reload and cause denial of service. Repeated reloads of a core switch or WAN router are effectively an outage an attacker can schedule, which is why even a Medium Severity (CVSS 5.9) bug earned a KEV listing. Both flaws are fixed by the same IOS upgrades.
Do this: Fold this into the same IOS remediation pass as its sibling CVE and confirm Login Block configurations on patched devices.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2018-0179
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2018-0179
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2022-03-17 (past due).
Apply updates per vendor instructions.
Official fix for CVE-2018-0179
The authoritative fix and affected-version list are published by the vendor. Find the IOS Software advisory on Cisco Security Advisories (PSIRT).
Common questions about CVE-2018-0179
Is CVE-2018-0179 actively exploited?
Yes. CVE-2018-0179 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2022-03-03, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 5.0%.
What is the CISA deadline and required action for CVE-2018-0179?
CISA set the federal (BOD 22-01) remediation due date at 2022-03-17, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply updates per vendor instructions.
What fixes CVE-2018-0179?
The authoritative fix is in the vendor advisory: see Cisco Security Advisories (PSIRT) for the patched IOS Software versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2018-0179?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2018-0179's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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