# CVE-2021-2161: Other in Java SE JDK and JRE > An unauthenticated attacker can modify or delete critical data in Java SE by exploiting a vulnerability in the Libraries component. - **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 22 Apr 2021 - **Updated:** 26 Sep 2024 - **Also known as:** BIT-java-2021-2161, BIT-java-min-2021-2161, BIT-jre-2021-2161, GHSA-f8w7-hh6g-979x, MINI-29jp-c29r-hcjp, MINI-5q3g-pp9g-7hvh, MINI-h9v4-v63v-5mx2, MINI-px9w-f279-2w7m, MINI-qc6v-rjjm-g8jv, MINI-qwh2-hg86-w5cm, MINI-v4g6-5phg-64p2, MINI-w5mm-3xm7-pgfm, UBUNTU-CVE-2021-2161 ## What is CVE-2021-2161? CVE-2021-2161 is a medium-severity vulnerability in Debian Debian Linux, published on 22 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description 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). ## Which versions are affected by CVE-2021-2161? 3 open source packages ship an affected version, including java, java-min and jre. It affects 12 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `java` | Bitnami | All versions | 1.7.0, 1.8.0, 7.0.301, 8.0.291, 11.0.11, 16.0.1 | | `java-min` | Bitnami | All versions | 1.7.0, 1.8.0, 7.0.301, 8.0.291, 11.0.11, 16.0.1 | | `jre` | Bitnami | All versions | 1.7.0, 1.8.0, 7.0.301, 8.0.291, 11.0.11, 16.0.1 | Products: Debian Debian Linux, Fedoraproject Fedora, Mcafee Epolicy Orchestrator, Netapp Active Iq Unified Manager, Netapp Hci Compute Node, Netapp Hci Management Node, Netapp Hci Storage Node, Netapp Solidfire, Oracle Graalvm, Oracle Jdk, Oracle Jre, Oracle Openjdk. ## How do I fix CVE-2021-2161? Upgrade java to a fixed version for your release line: 1.7.0, 1.8.0, 7.0.301 or 8.0.291. ## Is CVE-2021-2161 being exploited? There is no known exploitation of CVE-2021-2161 in the wild and no public exploit code. ## Other vulnerabilities in Debian Debian Linux - [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild) - [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild) - [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild) - [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild) - [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2021-2161 and fix it if it is affected. What it is: CVE-2021-2161 is a medium-severity vulnerability in Debian Debian Linux, published on 22 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2021-2161 in the wild and no public exploit code. Affected packages and fixed versions: - java (Bitnami): affected all versions; fixed in 1.7.0, 1.8.0, 7.0.301, 8.0.291, 11.0.11, 16.0.1 - java-min (Bitnami): affected all versions; fixed in 1.7.0, 1.8.0, 7.0.301, 8.0.291, 11.0.11, 16.0.1 - jre (Bitnami): affected all versions; fixed in 1.7.0, 1.8.0, 7.0.301, 8.0.291, 11.0.11, 16.0.1 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2021-2161/ (Markdown: https://insights.sbomify.com/CVE-2021-2161/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2021-2161 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-2161 - OSV: https://osv.dev/vulnerability/CVE-2021-2161 --- From sbomify Insights: https://insights.sbomify.com/CVE-2021-2161/ Summaries are generated and may contain mistakes; the official description above is the record.