CVE-2015-2557

Visio vulnerability

CVSS

9.3

EPSS

22.5%

EPSS pct

97th

Exploited

No known

Buffer overflow in Microsoft Visio 2007 SP3 and 2010 SP2 allows remote attackers to execute arbitrary code via crafted UML data in an Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Affected vendor

Microsoft

Affected product

Visio

CVSS vector

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

Weakness type (CWE)

CWE-119 — Improper Restriction of Operations within Memory Bounds

Published

2015-10-14

Risk analysis

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

Its EPSS score of 22.5% 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-2015-2557

Confirm whether Microsoft Visio is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-2557.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-2557

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-2557 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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