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CVE-2017-12232

52
FAUCET Score

CVE-2017-12232 is a denial-of-service vulnerability affecting Cisco Integrated Services Routers Generation 2 (ISR G2) running specific Cisco IOS versions. An unauthenticated, adjacent attacker can exploit a misclassification of Ethernet frames by sending a crafted frame, causing the device to reload. This vulnerability has a CVSS score of 6.5 (Medium) due to its adjacent attack vector and high impact on availability, and it is listed on the KEV catalog as actively exploited. Despite active exploitation, there is no public exploit code available, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 15.0, <= 15.6CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.17%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Mar 3, 2022
This CVE's current EPSS score of 0.0217 is in the 96th percentile among its peer group of 1,802 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, 0.1 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

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos
Vendor Advisory
securityfocus.com / bid/101044
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1039452
Broken LinkThird Party AdvisoryVDB Entry