5.3

CVE-2023-21830: azul zulu

Modified
AliasesUBUNTU-CVE-2023-21830DEBIAN-CVE-2023-21830CGA-28jq-j37x-mv76
Published 17-01-2023Last modified 28-05-2026

Vulnerability summary

CVE-2023-21830 is a medium (CVSS 5.3) vulnerability in azul zulu. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 65.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.09%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 15
MGASA-2023-0037OPENSUSE-SU-2024:12670-1RHSA-2023:0203RHSA-2023:0204RHSA-2023:0205RHSA-2023:0206

Timeline

  1. 17-01-2023
    PublishedVulnerability first disclosed.
  2. 28-05-2026
    Last modifiedVulnerability information updated.

Description

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 GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

1.09%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 1.06% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard26 products
  • corretto-11-dbg< 11.0.28.6.1-r3
  • openjdk-10All versions (No fix recorded)
  • openjdk-11< 11.0.26-r2
  • openjdk-11-bcfips< 11.0.26-r0
  • openjdk-11-openj9-default-policy< 0.53.0-r0
Wolfi8 products
  • openjdk-10All versions (No fix recorded)
  • openjdk-11< 11.0.26-r2
  • openjdk-7All versions (No fix recorded)
  • openjdk-9< 9.0.4-r5
  • openjdk-9-default-jdk< 9.0.4-r5
Oracle4 products
Alpine1 product
  • openjdk8< 8.362.09-r0
Azul1 product
  • zuluEOL6.51 | 7.57 | 8.66
Debian1 product
  • openjdk-21< 21~7ea-1
Opensuse1 product
  • java-1_8_0-openj9&distro=openSUSE Tumbleweed< 1.8.0.362-1.1
Oracle corporation1 product
  • java se jdk and jreOracle Java SE:8u351 | Oracle Java SE:8u351-perf | Oracle GraalVM Enterprise Edition:20.3.8 | Oracle GraalVM Enterprise Edition:21.3.4
Ubuntu1 product
  • openjdk-8< 8u362-ga-0ubuntu1~16.04.1 | < 8u362-ga-0ubuntu1~18.04.1 | < 8u362-ga-0ubuntu1~20.04.1 | < 8u362-ga-0ubuntu1~22.04

9 vendors · 44 products

References

12 links
Show all 12 references