What is CVE-2015-2557?

CVE-2015-2557 is a vulnerability in Microsoft Visio, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-10-14.

Is CVE-2015-2557 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Microsoft Visio

CVE-2015-2557

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."

Vulnerability class: Buffer Overflow

Published 2015-10-14 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.225 (97.7th percentile), scored 2026-10-19.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.225 · newest: 0.225 · change: 0.000

Affected products

Microsoft Visio — versions 2007, 2010

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-110 (vendor-advisory)
www.zerodayinitiative.com/advisories/ZDI-15-519 (VDB Entry, Third Party Advisory)
www.securitytracker.com/id/1033803 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2015-2557?: CVE-2015-2557 is a vulnerability in Microsoft Visio, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-10-14.
Is CVE-2015-2557 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.