CVE-2021-391468.5HighCWE-434

CVE-2021-39146: XStream is vulnerable to an Arbitrary Code Execution attack

x-stream · xstream

Vendor fix available · Affected: x-stream xstream · Exploitation: check available, not yet exploited

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

14.3%probability of exploitation in the next 30 days

96th percentile

050100

Higher than 96% of scored CVEs

8.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

x-stream · xstream< 1.4.18

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
CISA KEV: Not listed
Public check: XStream 1.4.18 - Arbitrary Code Execution · nuclei template in projectdiscovery/nuclei-templates
Weakness: Unrestricted File Upload · File and Path Handling
Vendor: x-stream
Published: August 2021
Band: Check available, not yet exploited, August 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-39146 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.