CVE-2011-1475

Tomcat vulnerability

CVSS

5.0

EPSS

8.7%

EPSS pct

95th

Exploited

No known

The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining, which allows remote attackers to read responses intended for other clients in opportunistic circumstances by examining the application data in HTTP packets, related to "a mix-up of responses for requests from different users."

Affected vendor

Apache

Affected product

Tomcat

CVSS vector

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

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2011-04-08

Risk analysis

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

Its EPSS score of 8.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2011-1475

Confirm whether Apache Tomcat is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2011-1475.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-1475

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