--- title: "CVE-2017-6744: Cisco IOS vulnerability | CubePath" description: "The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities…" language: en source: https://cubepath.com/security/cve/CVE-2017-6744 --- # CVE-2017-6744: Cisco IOS vulnerability | CubePath ## Description 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. Official description from the CVE record, published by cisco. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2017-6744) ## Key data ### CVSS 3.0 High 8.8 Score published by cisco in the CVE record. CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | Low | A basic user account is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.07292 (7.3% probability) Percentile 94.4% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Cisco IOS Software SNMP Remote Code Execution Vulnerability Added to the catalog Mar 3, 2022 Federal due date Mar 24, 2022 ### CISA assessment as of Feb 4, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-119](https://cwe.mitre.org/data/definitions/119.html) Improper Restriction of Operations within the Bounds of a Memory Buffer ## Affected products Products listed in the CVE record, as the CNA published them. - Cisco IOS - affected: 12.1(3)XI - affected: 12.2(1b)DA - affected: 12.2(5)DA - affected: 12.2(7)DA - affected: 12.2(12)DA - affected: 12.2(10)DA5 - affected: 12.2(12)DA10 - affected: 12.2(10)DA - affected: 12.2(12)DA1 - affected: 12.2(12)DA6 - affected: 12.2(10)DA8 - affected: 12.2(12)DA8 - affected: 12.2(12)DA11 - affected: 12.2(12)DA9 - affected: 12.2(12)DA4 - affected: 12.2(10)DA3 - affected: 12.2(5)DA1 - affected: 12.2(12)DA13 - affected: 12.2(12)DA12 - affected: 12.2(12)DA7 - affected: 12.2(1b)DA1 - affected: 12.2(10)DA1 - affected: 12.2(10)DA6 - affected: 12.2(10)DA4 - affected: 12.2(12)DA2 - and 797 more - IntelliShield Universal Product - affected: N/A ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [cisco-sa-20170629-snmp](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp) (sec.cloudapps.cisco.com) ## Timeline 1. ID reserved Mar 9, 2017 2. Record published Jul 17, 2017 3. Added to CISA KEV Mar 3, 2022 4. Record last updated Oct 21, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:33 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)