SARA / Free Tools / CVE / CVE-2017-12232

CVE-2017-12232 — Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulne

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (Do

CVSS
EPSS
99.00% (top 23.40%)
CWE
CWE-399
Published
2017-09-28T07:00:00.000Z
Last modified
2026-01-12T21:40:58.787Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2022-03-03
BOD 22-01 due
2022-03-24
Ransomware use
Unknown

01What is this vulnerability?

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a misclassification of Ethernet frames. An attacker could exploit this…

02Affected products

VendorProductVersions
na / Cisco IOSCisco IOS

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-03-03. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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