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CVE-2017-12338

20
FAUCET Score

CVE-2017-12338 is a medium-severity vulnerability in the Cisco NX-OS System Software CLI, affecting numerous Cisco Nexus and Multilayer Director Switches, as well as Unified Computing System Manager. An authenticated, local attacker can exploit insufficient input validation in a specific CLI command to read arbitrary files on the underlying file system, including across virtual device contexts. While the CVSS score is 6.0, indicating high confidentiality impact, there is no known public exploit code (Metasploit, Nuclei, ExploitDB) and no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
8.0\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:8.0\(1\):*:*:*:*:*:*:*
8.1\(0\)bd\(0.20\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:8.1\(0\)bd\(0.20\):*:*:*:*:*:*:*
8.1\(1\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:8.1\(1\):*:*:*:*:*:*:*
7.0\(0\)hsk\(0.357\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_computing_system:7.0\(0\)hsk\(0.357\):*:*:*:*:*:*:*
12.2\(1.107\)CPE matchmatch criteria
cpe:2.3:o:cisco:lan_switch_software:12.2\(1.107\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.5
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 79th percentile among its peer group of 3,720 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-20171129-nxos6
Vendor Advisory
securitytracker.com / id/1039937
Third Party AdvisoryVDB Entry