CVE-2026-11463Public exploitNetwork attack vector

Code execution via untyped shared-pointer ID reuse

Published Jun 7, 2026 · Updated Jun 7, 2026

Type confusion in USCiLab cereal 1.3.0 through 1.3.2 allows remote attackers to corrupt memory via crafted shared-pointer archives. The input archive reuses a shared-pointer ID from its untyped map without verifying that the retrieved object matches the destination pointer type. A consuming application must deserialize attacker-controlled data containing differently typed shared pointers in sequence; the resulting alias can disclose memory or enable arbitrary code execution.

CVSS severity7.3
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in USCiLab cereal 1.3.0 through 1.3.2 allows remote attackers to corrupt memory via crafted shared-pointer archives. The input archive reuses a shared-pointer ID from its untyped map without verifying that the retrieved object matches the destination pointer type. A consuming application must deserialize attacker-controlled data containing differently typed shared pointers in sequence; the resulting alias can disclose memory or enable arbitrary code execution.

The record

CVE
CVE-2026-11463
Published
Jun 7, 2026
Updated
Jun 7, 2026
Vendor
USCiLab
Product
cereal
Classifications
CWE-843
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.3.0
  2. Affected versionversion=1.3.1
  3. Affected versionversion=1.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

USCiLab · cerealversion=1.3.0; version=1.3.1; version=1.3.2

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
2.9VulDBCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')

Public exploit references

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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