How severe is CVE-2017-1000355?

CVE-2017-1000355 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-1000355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-1000355?

CVE-2017-1000355 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-1000355?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-1000355 published?

CVE-2017-1000355 was published on 2018-01-29 and last updated on 2026-06-17.

CVE-2017-1000355

CVE-2017-1000355 is a medium-severity vulnerability in Jenkins with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Jenkins
Published: 2018-01-29
Last modified: 2026-06-17

Description

Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an XStream: Java crash when trying to instantiate void/Void.

Frequently asked questions

What is CVE-2017-1000355?: Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an XStream: Java crash when trying to instantiate void/Void.
How severe is CVE-2017-1000355?: CVE-2017-1000355 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-1000355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-1000355?: CVE-2017-1000355 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-1000355?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-1000355 published?: CVE-2017-1000355 was published on 2018-01-29 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:*
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*

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