CVE-2017-6740 — Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability

CVE-2017-6740 (Cisco IOS and IOS XE Software) is in the CISA Known Exploited Vulnerabilities catalog since 2022-03-03. The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE contains a vulnerability… See the required fix, due date and advisories.

Exploitation status

CVE-2017-6740 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2022-03-03. The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE 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.

Advisory facts

Vendor or project
Cisco
Affected product
IOS and IOS XE Software
Added to CISA KEV
2022-03-03
US federal remediation due date
2022-03-24
Ransomware association
Unknown
EPSS score
—
Weakness (CWE)
CWE-119

Remediation: the required action

Apply updates per vendor instructions.

Wording published by CISA for this catalog entry. It is the baseline action, not a decision about your environment: whether this exposure matters for you depends on where the affected component runs, what it is exposed to and who owns it.

From advisory to a decision you can defend

A catalog entry tells you a vulnerability is being exploited somewhere. It does not tell you whether it matters in your estate, who owns the fix, or what evidence an auditor will ask for later. That is the work VulnTrek does: it takes findings from the tools you already run, decides which exposure actually matters, routes it to an owner, keeps remediation human-approved and retains the lineage as evidence.

Sourced from public upstream advisories (CISA KEV, ENISA EUVD, vendor PSIRTs) mirrored daily. Informational only — not a remediation decision, not legal advice, and the absence of a record is not evidence of safety.