# CVE-2017-1000353

Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java `SignedObject` object to the Jenkins CLI, that would be deserialized using a new `ObjectInputStream`, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding `SignedObject` to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.

- Page: https://www.vulneraibility.com/cve/CVE-2017-1000353
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2025-10-02; CISA due date 2025-10-23
- EPSS: 99.68%
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module · 2 GitHub proofs of concept (first 2017-05-05)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-10-02)
- Weakness: CWE-502
- Also known as: GHSA-26wc-3wqp-g3rp
- Published: 2018-01-29

## Affected

- jenkins:jenkins
- oracle:communications_cloud_native_core_automated_test_suite

## References

- [exploit] https://www.exploit-db.com/exploits/41965/
- [other] http://www.securityfocus.com/bid/98056
- [other] https://www.oracle.com/security-alerts/cpuapr2022.html
- [other] https://jenkins.io/security/advisory/2017-04-26/
- [other] http://packetstormsecurity.com/files/159266/Jenkins-2.56-CLI-Deserialization-Code-Execution.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-1000353

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.