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CVE-2017-6649

20
FAUCET Score

CVE-2017-6649 is a command injection vulnerability in the CLI of Cisco NX-OS System Software versions 7.1 through 7.3, affecting various Cisco Nexus Series Switches. An authenticated, local attacker can exploit insufficient input validation to inject crafted command arguments, allowing them to read or write arbitrary files at the user's privilege level outside of the user's path. This vulnerability has a CVSS v3.0 score of 7.8 (High), indicating high impact on confidentiality, integrity, and availability, with low attack complexity and requiring local access and low privileges. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.1\(1\)n1\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.1\(1\)n1\(1\):*:*:*:*:*:*:*
7.1\(2\)n1\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.1\(2\)n1\(1\):*:*:*:*:*:*:*
7.1\(3\)n1\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(1\):*:*:*:*:*:*:*
7.1\(3\)n1\(2\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(2\):*:*:*:*:*:*:*
7.1\(3\)n1\(2.1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(2.1\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 91st percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-nss
Vendor Advisory
securityfocus.com / bid/98531
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038518