Known exploited vulnerability
CVE-2017-1000353
The short answer
CVE-2017-1000353 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-10-02: attackers are using it, so patch it first. Fixed versions are published for jenkins-core (2.57, 2.46.2).
What it is
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.
Weakness: CWE-502.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Oct 2, 2025
Federal due date Oct 23, 2025
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected packages and fixed versions
| Package | Ecosystem | Fixed in | Advisory |
|---|---|---|---|
| org.jenkins-ci.main:jenkins-core | Maven | 2.57, 2.46.2 | GHSA-26wc-3wqp-g3rp |
Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- jenkins.io/security/advisory/2017-04-26/ Vendor Advisory
- www.exploit-db.com/exploits/41965/ ExploitThird Party AdvisoryVDB Entry
- www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
- jenkins.io/security/advisory/2017-04-26/ Vendor Advisory
- www.exploit-db.com/exploits/41965/ ExploitThird Party AdvisoryVDB Entry
- www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-1000353 US Government Resource
Questions
Is CVE-2017-1000353 being exploited?
Yes. CISA added CVE-2017-1000353 to its Known Exploited Vulnerabilities catalog on 2025-10-02, with a federal remediation due date of 2025-10-23.
How do I fix CVE-2017-1000353?
Upgrade to a fixed version: org.jenkins-ci.main:jenkins-core (Maven) 2.57 or 2.46.2. CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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