THREATPORT/VULNERABILITY/CVE-2010-4671
HIGH SEVERITY

CVE-2010-4671

Ios vulnerability

CVSS
7.8
EPSS
3.6%
EPSS pct
88th
Exploited
No known
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS before 15.0(1)XA5 allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, as demonstrated by the flood_router6 program in the thc-ipv6 package, aka Bug ID CSCti33534.
Affected vendor
Cisco
Affected product
Ios
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness type (CWE)
  • CWE-400 — Uncontrolled Resource Consumption
Published
2011-01-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2010-4671

  • Confirm whether Cisco Ios is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2010-4671.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2010-4671

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2010-4671 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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