CVE-2021-39141
high-risk
Published 2021-08-23
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.
Do I need to act?
!
81.8% chance of exploitation in next 30 days
EPSS score — higher than 18% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.5/10
High
NETWORK
/ HIGH complexity
Affected Products (20)
Affected Vendors
References (22)
Third Party Advisory
https://github.com/x-stream/xstream/security/advisories/GHSA-g5w6-mrj7-75h2
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210923-0003/
Third Party Advisory
https://www.debian.org/security/2021/dsa-5004
Third Party Advisory
https://github.com/x-stream/xstream/security/advisories/GHSA-g5w6-mrj7-75h2
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210923-0003/
Third Party Advisory
https://www.debian.org/security/2021/dsa-5004
and 2 more references
68
/ 100
high-risk
Severity
25/34 · High
Exploitability
20/34 · Moderate
Exposure
23/34 · High