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CVE-2017-6744: Cisco IOS Software SNMP Remote Code Execution Vulnerability

criticalknown exploitedCVE-2017-6744
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.
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 1 contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6.

CSIRTS triage

What
The SNMP subsystem of Cisco IOS contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code.
Who is affected
Authenticated users of Cisco IOS Software are affected.
Urgency
Remediation is urgent due to the critical nature of the vulnerability and its exploitation status.
Action
Apply the latest security patches provided by Cisco.

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-2017-6744

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-2017-6744coverage & 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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