CVE-2010-2091

Exchange Server vulnerability

CVSS

4.3

EPSS

17.9%

EPSS pct

97th

Exploited

No known

Microsoft Outlook Web Access (OWA) 8.2.254.0, when Internet Explorer 7 on Windows Server 2003 is used, does not properly handle the id parameter in a Folder IPF.Note action to the default URI, which might allow remote attackers to obtain sensitive information or conduct cross-site scripting (XSS) attacks via an invalid value.

Affected vendor

Microsoft

Affected product

Exchange Server

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2010-05-27

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 17.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2010-2091

Confirm whether Microsoft Exchange Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2010-2091.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2010-2091

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2010-2091 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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