Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).
CVE-2021-21351
Severity
9.1CRITICAL
EPSS
92.0%
top 0.30%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
Timeline
PublishedMar 23
Latest updateAug 22
Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at…
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:NExploitability: 1.0 | Impact: 4.0
Affected Packages16 packages
Also affects: Debian Linux 10.0, 11.0, 9.0, Fedora 33, 34, 35
Patches
🔴Vulnerability Details
4💥Exploits & PoCs
1Nuclei▶
XStream <1.4.16 - Remote Code Execution