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CVE-2017-3853

35
FAUCET Score

CVE-2017-3853 is a critical stack overflow vulnerability in the Cisco IOx Data-in-Motion (DMo) process, affecting Cisco IR809 and IR829 Industrial Integrated Services Routers running IOx Releases 1.0.0.0 and 1.1.0.0. An unauthenticated, remote attacker can exploit this by sending crafted packets, leading to remote code execution with root privileges within the virtual instance. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low complexity, resulting in complete compromise of confidentiality, integrity, and availability within the virtual instance. While there is no known active exploitation or public exploit code, it has garnered some community discussion and media coverage, indicating awareness of its significant risk.

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

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.71%
Probability of exploitation in next 30 days
EPSS Percentile
94.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0871 is in the 90th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

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-20170322-iox
Vendor Advisory
securityfocus.com / bid/97011
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038105