CVE-2008-3821

Ios vulnerability

CVSS

4.3

EPSS

5.4%

EPSS pct

92th

Exploited

No known

Multiple cross-site scripting (XSS) vulnerabilities in the HTTP server in Cisco IOS 11.0 through 12.4 allow remote attackers to inject arbitrary web script or HTML via (1) the query string to the ping program or (2) unspecified other aspects of the URI.

Affected vendor

Cisco

Affected product

Ios

CVSS vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2009-01-16

Risk analysis

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

Its EPSS score of 5.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2008-3821

Confirm whether Cisco Ios is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2008-3821.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-3821

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-3821 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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