Is CVE-2015-2556 in the CISA KEV catalog?

No. CVE-2015-2556 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-2556?

CVE-2015-2556 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-2556?

CVE-2015-2556 has an EPSS score of 15.25% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2015-2556

MEDIUMEPSS 96th pctl

4.3

CVSS v2

NVD

Description

The InfoPath Forms Services component in Microsoft SharePoint Server 2007 SP3 and 2010 SP2 misparses DTDs, which allows remote attackers to read arbitrary files via an XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka "Microsoft SharePoint Information Disclosure Vulnerability."

CWE-200Information Exposure

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

15.25%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.