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CVE-2018-0151: Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability

criticalknown exploitedCVE-2018-0151
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges.

CSIRTS triage

vendor: Ciscoproduct: IOS Software and IOS XE SoftwareRemote code executionDenial of service
What
A vulnerability in the QoS subsystem could allow remote attackers to execute arbitrary code or cause a denial of service.
Who is affected
Unauthenticated remote attackers can exploit this vulnerability in Cisco IOS and IOS XE Software.
Urgency
Remediation is critical due to the high severity and active exploitation.
Action
Update Cisco IOS and IOS XE Software to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-0151

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2018-0151coverage & exploitation statusNVD · CVE.org

Recent advisories for Cisco IOS Software

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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