CVE-2020-11104Network attack vector

Memory disclosure via long-double serialization

Published Mar 30, 2020 · Updated Aug 4, 2024

Information disclosure in USC iLab cereal through 1.3.0 allows attackers to read leaked memory via BinaryArchive serialization. BinaryArchive and PortableBinaryArchive serialize initialized C/C++ long double values with padding bytes that contain stack or heap data. The leak requires an archive to leave a trusted context and can expose memory layout details or private keys without altering data or interrupting service.

CVSS severity5.3
Medium
EPSS probability1.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in USC iLab cereal through 1.3.0 allows attackers to read leaked memory via BinaryArchive serialization. BinaryArchive and PortableBinaryArchive serialize initialized C/C++ long double values with padding bytes that contain stack or heap data. The leak requires an archive to leave a trusted context and can expose memory layout details or private keys without altering data or interrupting service.

The record

CVE
CVE-2020-11104
Published
Mar 30, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-908
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 30, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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