CVE-2023-21830 — Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product o

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Serialization). Supported versions that are affected are Oracle Java SE: 8u351, 8u351-perf; Oracle GraalVM Enterprise Edition: 20.3.8 and 21.3.4. Easily exploitable vulner

01What is this vulnerability?

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Serialization). Supported versions that are affected are Oracle Java SE: 8u351, 8u351-perf; Oracle GraalVM Enterprise Edition: 20.3.8 and 21.3.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle…

02Affected products

Vendor	Product	Versions
Oracle Corporation	Java SE JDK and JRE	Oracle Java SE:8u351, Oracle Java SE:8u351-perf, Oracle GraalVM Enterprise Edition:20.3.8, Oracle GraalVM Enterprise Edition:21.3.4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-01-17T23:35:07.212Z
• Last modified: 2025-02-13T16:40:15.910Z

09References

• www.oracle.com — https://www.oracle.com/security-alerts/cpujan2023.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpujul2023.html
• security.gentoo.org — https://security.gentoo.org/glsa/202401-25