Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L L N U H H H 8.8 .0729 94.2 YES
AFFECTED Product Versions Fixed IOS 12.1(3)XI – — Universal Product N/A – —
TIMELINE Mar 9 Reserved by cisco Jul 17 Published (CNA: cisco) Mar 3 Added to CISA KEV, remediation due 2022-03-24
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities 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. Only traffic directed to an affected system can be used to exploit these vulnerabilities. The vulnerabilities are due to a buffer overflow condition in the SNMP subsystem of the affected software. The vulnerabilities affect all versions of SNMP - Versions 1, 2c, and 3. To exploit these vulnerabilities via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. To exploit these vulnerabilities via SNMP Version 3, the attacker must have user credentials for the affected system. A successful exploit could allow the attacker to execute arbitrary code and obtain full control of the affected system or cause the affected system to reload. Customers are advised to apply the workaround as contained in the Workarounds section below. Fixed software information is available via the Cisco IOS Software Checker. All devices that have enabled SNMP and have not explicitly excluded the affected MIBs or OIDs should be considered vulnerable. There are workarounds that address these vulnerabilities.
| Date | Event | Detail |
|---|---|---|
| March 9, 2017 | Reserved | Reserved by cisco |
| July 17, 2017 | Published | Published (CNA: cisco) |
| March 3, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-03-24 |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Cisco | IOS | — | 12.1(3)XI | — |
| IntelliShield | Universal Product | — | N/A | — |
Authoritative record: CVE-2017-6744 at cve.org
Vendors: cisco · intellishield
Weaknesses: CWE-119
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-6744 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
