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CVE-2017-3852

21
FAUCET Score

CVE-2017-3852 describes a vulnerability in the Cisco IOx application environment's application-hosting framework (CAF) component, affecting Cisco IOx Releases 1.0.0.0 and 1.1.0.0. This flaw, stemming from insufficient input validation of user-supplied application packages, allows an authenticated, remote attacker to write or modify arbitrary files within the virtual instance. With a CVSS score of 8.1 (HIGH), the vulnerability has a low attack complexity and can lead to high integrity and availability impacts within the virtual instance, though it does not affect the host router. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.1\(0\)CPE matchmatch criteria
cpe:2.3:a:cisco:iox:1.1\(0\):*:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:a:cisco:iox:1.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 82nd percentile among its peer group of 17,822 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 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-20170322-caf2
Vendor Advisory
securityfocus.com / bid/97014
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038108
securitytracker.com / id/1038109