Vulnerability Database

327,594

Total vulnerabilities in the database

CVE-2021-2161

Vulnerability in the Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 7u291, 8u281, 11.0.10, 16; Java SE Embedded: 8u281; Oracle GraalVM Enterprise Edition: 19.3.5, 20.3.1.2 and 21.0.0.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. It can also be exploited by supplying untrusted data to APIs in the specified Component. CVSS 3.1 Base Score 5.9 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

  • Published: Apr 22, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-2161
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:P/A:N

No CWE or OWASP classifications available.

Software From Fixed in
oracle / jdk 11.0.10 11.0.10.x
oracle / jdk 16.0.0 16.0.0.x
oracle / jdk 1.8.0-update281 1.8.0-update281.x
oracle / jdk 1.7.0-update291 1.7.0-update291.x
oracle / jre 1.8.0-update281 1.8.0-update281.x
debian / debian_linux 9.0 9.0.x
debian / debian_linux 10.0 10.0.x
fedoraproject / fedora 32 32.x
fedoraproject / fedora 33 33.x
fedoraproject / fedora 34 34.x
oracle / graalvm 20.3.1.2 20.3.1.2.x
oracle / graalvm 21.0.0.2 21.0.0.2.x
oracle / graalvm 19.3.5 19.3.5.x
oracle / openjdk 8 8.x
oracle / openjdk 8-update102 8-update102.x
oracle / openjdk 8-update112 8-update112.x
oracle / openjdk 8-update152 8-update152.x
oracle / openjdk 8-update162 8-update162.x
oracle / openjdk 8-update172 8-update172.x
oracle / openjdk 8-update192 8-update192.x
oracle / openjdk 8-update20 8-update20.x
oracle / openjdk 8-update202 8-update202.x
oracle / openjdk 8-update212 8-update212.x
oracle / openjdk 8-update222 8-update222.x
oracle / openjdk 8-update232 8-update232.x
oracle / openjdk 8-update40 8-update40.x
oracle / openjdk 8-update60 8-update60.x
oracle / openjdk 8-update66 8-update66.x
oracle / openjdk 8-update72 8-update72.x
oracle / openjdk 8-update92 8-update92.x
oracle / openjdk 7-update241 7-update241.x
oracle / openjdk 7-update80 7-update80.x
oracle / openjdk 7-update85 7-update85.x
oracle / openjdk 7 7.x
oracle / openjdk 8-update241 8-update241.x
oracle / openjdk 8-update65 8-update65.x
oracle / openjdk 8-update71 8-update71.x
oracle / openjdk 8-update73 8-update73.x
oracle / openjdk 8-update74 8-update74.x
oracle / openjdk 8-update77 8-update77.x
oracle / openjdk 8-update91 8-update91.x
oracle / openjdk 8-update101 8-update101.x
oracle / openjdk 8-update111 8-update111.x
oracle / openjdk 8-update121 8-update121.x
oracle / openjdk 8-update131 8-update131.x
oracle / openjdk 8-update141 8-update141.x
oracle / openjdk 8-update151 8-update151.x
oracle / openjdk 8-update161 8-update161.x
oracle / openjdk 8-update171 8-update171.x
oracle / openjdk 8-update181 8-update181.x
oracle / openjdk 8-update191 8-update191.x
oracle / openjdk 8-update201 8-update201.x
oracle / openjdk 8-update211 8-update211.x
oracle / openjdk 8-update45 8-update45.x
oracle / openjdk 8-update51 8-update51.x
oracle / openjdk 8-update25 8-update25.x
oracle / openjdk 8-update31 8-update31.x
oracle / openjdk 8-update5 8-update5.x
oracle / openjdk 8-update11 8-update11.x
oracle / openjdk 8-update221 8-update221.x
oracle / openjdk 8-update231 8-update231.x
oracle / openjdk 7-update251 7-update251.x
oracle / openjdk 7-update231 7-update231.x
oracle / openjdk 7-update221 7-update221.x
oracle / openjdk 7-update211 7-update211.x
oracle / openjdk 7-update201 7-update201.x
oracle / openjdk 7-update191 7-update191.x
oracle / openjdk 7-update181 7-update181.x
oracle / openjdk 7-update171 7-update171.x
oracle / openjdk 7-update161 7-update161.x
oracle / openjdk 7-update151 7-update151.x
oracle / openjdk 7-update141 7-update141.x
oracle / openjdk 7-update131 7-update131.x
oracle / openjdk 7-update121 7-update121.x
oracle / openjdk 7-update111 7-update111.x
oracle / openjdk 7-update101 7-update101.x
oracle / openjdk 7-update99 7-update99.x
oracle / openjdk 7-update97 7-update97.x
oracle / openjdk 7-update95 7-update95.x
oracle / openjdk 7-update91 7-update91.x
oracle / openjdk 7-update76 7-update76.x
oracle / openjdk 7-update72 7-update72.x
oracle / openjdk 7-update67 7-update67.x
oracle / openjdk 7-update65 7-update65.x
oracle / openjdk 7-update60 7-update60.x
oracle / openjdk 7-update55 7-update55.x
oracle / openjdk 7-update51 7-update51.x
oracle / openjdk 7-update45 7-update45.x
oracle / openjdk 7-update40 7-update40.x
oracle / openjdk 7-update25 7-update25.x
oracle / openjdk 7-update21 7-update21.x
oracle / openjdk 7-update17 7-update17.x
oracle / openjdk 7-update15 7-update15.x
oracle / openjdk 7-update13 7-update13.x
oracle / openjdk 7-update11 7-update11.x
oracle / openjdk 7-update10 7-update10.x
oracle / openjdk 7-update9 7-update9.x
oracle / openjdk 7-update7 7-update7.x
oracle / openjdk 7-update6 7-update6.x
oracle / openjdk 7-update5 7-update5.x
oracle / openjdk 7-update4 7-update4.x
oracle / openjdk 7-update3 7-update3.x
oracle / openjdk 7-update2 7-update2.x
oracle / openjdk 7-update1 7-update1.x
oracle / openjdk 8-update271 8-update271.x
oracle / openjdk 8-update281 8-update281.x
oracle / openjdk 8-milestone1 8-milestone1.x
oracle / openjdk 8-milestone2 8-milestone2.x
oracle / openjdk 8-update282 8-update282.x
oracle / openjdk 8-milestone3 8-milestone3.x
oracle / openjdk 8-milestone4 8-milestone4.x
oracle / openjdk 8-milestone5 8-milestone5.x
oracle / openjdk 8-milestone6 8-milestone6.x
oracle / openjdk 8-milestone7 8-milestone7.x
oracle / openjdk 8-milestone8 8-milestone8.x
oracle / openjdk 8-milestone9 8-milestone9.x
oracle / openjdk 7-update271 7-update271.x
oracle / openjdk 7-update281 7-update281.x
oracle / openjdk 7-update291 7-update291.x
oracle / openjdk 8-update242 8-update242.x
oracle / openjdk 8-update252 8-update252.x
oracle / openjdk 8-update262 8-update262.x
oracle / openjdk 7-update261 7-update261.x
oracle / openjdk 16 16.x
oracle / openjdk 15 15.0.2.x
oracle / openjdk 11 11.0.10.x
oracle / openjdk 13 13.0.6.x
mcafee / epolicy_orchestrator 5.10.0-update_1 5.10.0-update_1.x
mcafee / epolicy_orchestrator 5.10.0-update_2 5.10.0-update_2.x
mcafee / epolicy_orchestrator 5.10.0-update_3 5.10.0-update_3.x
mcafee / epolicy_orchestrator 5.10.0-update_4 5.10.0-update_4.x
mcafee / epolicy_orchestrator 5.10.0-update_5 5.10.0-update_5.x
mcafee / epolicy_orchestrator 5.10.0-update_6 5.10.0-update_6.x
mcafee / epolicy_orchestrator 5.10.0 5.10.0.x
mcafee / epolicy_orchestrator - 5.10.0
mcafee / epolicy_orchestrator 5.10.0-update_7 5.10.0-update_7.x
mcafee / epolicy_orchestrator 5.10.0-update_8 5.10.0-update_8.x
mcafee / epolicy_orchestrator 5.10.0-update_9 5.10.0-update_9.x
mcafee / epolicy_orchestrator 5.10.0-update_10 5.10.0-update_10.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.