CVE-2022-21549Network attack vector

Data modification via unsafe library deserialization

Published Jul 19, 2022 · Updated May 27, 2026

Deserialization in Oracle Java SE 17.0.3.1 Libraries allows remote attackers to modify some accessible data via multiple protocols. Oracle has not published the affected library API or the exact unsafe deserialization operation. Exploitation requires sandboxed code loaded from an untrusted source or an application, such as a web service, that passes attacker-supplied data to the affected Libraries APIs.

CVSS severity5.3
Medium
EPSS probability2.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Oracle Java SE 17.0.3.1 Libraries allows remote attackers to modify some accessible data via multiple protocols. Oracle has not published the affected library API or the exact unsafe deserialization operation. Exploitation requires sandboxed code loaded from an untrusted source or an application, such as a web service, that passes attacker-supplied data to the affected Libraries APIs.

The record

CVE
CVE-2022-21549
Published
Jul 19, 2022
Updated
May 27, 2026
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
CWE-502
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=Oracle GraalVM Enterprise Edition:21.3.2
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:22.1.0
  3. Affected versionversion=Oracle Java SE:17.0.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Java Platform, Standard Edition (Java SE)version=Oracle GraalVM Enterprise Edition:21.3.2; version=Oracle GraalVM Enterprise Edition:22.1.0; version=Oracle Java SE:17.0.3.1

Published CVSS scores

5.3Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

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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