SARA / Free Tools / CVE / CVE-2018-0257

CVE-2018-0257 — A vulnerability in Cisco IOS XE Software running on Cisco cBR Series Converged B

A vulnerability in Cisco IOS XE Software running on Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, adjacent attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the inco

CVSS
— —
EPSS
0.23% (top 54.60%)
CWE
CWE-399
Published
2018-04-19T20:00:00.000Z
Last modified
2024-11-29T15:15:41.190Z
CVSS vector
—

01What is this vulnerability?

A vulnerability in Cisco IOS XE Software running on Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, adjacent attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the incorrect handling of certain DHCP packets. An attacker could exploit this vulnerability by sending certain DHCP packets to…

02Affected products

VendorProductVersions
na / Cisco cBR Series Converged Broadband RoutersCisco cBR Series Converged Broadband Routers

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

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

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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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