Exploited CVEs / Cisco / CVE-2018-0180
CVE-2018-0180
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-2018-0180
Cisco IOS's Login Block feature, ironically a brute-force protection, can be abused by an unauthenticated remote attacker to force a device reload, knocking out a router or switch on demand. It is one of a large batch of IOS denial-of-service flaws CISA added to the KEV list together in March 2022, confirming operational use against network infrastructure. Severity is Medium at CVSS 5.9.
Do this: Audit IOS versions against Cisco's 2018 advisories and schedule upgrades for any device still running vulnerable trains.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2018-0180
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2018-0180
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-2018-0180
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-2018-0180
Is CVE-2018-0180 actively exploited?
Yes. CVE-2018-0180 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-2018-0180?
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-2018-0180?
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-2018-0180?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2018-0180'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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