CVE-2013-3159

What it is

Microsoft Excel 2003 SP3, 2007 SP3, and 2010 SP1 and SP2; Excel Viewer; and Microsoft Office Compatibility Pack SP3 allow 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 "XML External Entities Resolution Vulnerability."

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

15.5% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2013-09-11 14:03 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:54 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 15.5% in the next 30 days (EPSS).
• Severity: 4.3 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2013-09-11 14:03 UTC

Last modified

2026-06-16 23:54 UTC

Exploit probability

15.5% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Microsoft Excel 2003
• Microsoft Excel 2007
• Microsoft Excel 2010

Attack profile CVSS 2.0 · 4.3

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2013-3159.md and follow it. Check whether this project is affected by CVE-2013-3159. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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