CVE-2020-11865

Information disclosure via unchecked stock-object index

Published May 11, 2020 · Updated Aug 4, 2024

Out-of-bounds access in libEMF 1.0.11 and earlier allows local users to disclose memory by opening a crafted EMF file. GLOBALOBJECTS::find masks the high bit of a stock-object handle, then indexes the global object vector without verifying that the resulting index is within its size. Exploitation requires the crafted file to be processed; the demonstrated failure is a memory-access violation, and the upstream advisory identifies information disclosure as the impact.

CVSS severity7.8
High
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in libEMF 1.0.11 and earlier allows local users to disclose memory by opening a crafted EMF file. GLOBALOBJECTS::find masks the high bit of a stock-object handle, then indexes the global object vector without verifying that the resulting index is within its size. Exploitation requires the crafted file to be processed; the demonstrated failure is a memory-access violation, and the upstream advisory identifies information disclosure as the impact.

The record

CVE
CVE-2020-11865
Published
May 11, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, T1204.002
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. May 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8SUSECVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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