CVE-2021-21351 is a critical remote code execution (RCE) vulnerability in XStream, a Java library for XML serialization, affecting versions prior to 1.4.16. This flaw allows a remote attacker to execute arbitrary code by manipulating the input stream, impacting products from vendors like Apache, Oracle, and NetApp. With a CVSS score of 9.1 (CRITICAL) and an EPSS score indicating high exploitability, it presents a significant risk due to its network-based attack vector and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation in the wild or Metasploit modules, Nuclei templates exist for detecting this vulnerability, and it has garnered minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* | ||
< 5.15.14CPE matchmatch criteria | cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* | ||
5.16.0CPE matchmatch criteria | cpe:2.3:a:apache:activemq:5.16.0:*:*:*:*:*:*:* | ||
5.16.1CPE matchmatch criteria | cpe:2.3:a:apache:activemq:5.16.1:*:*:*:*:*:*:* | ||
< 5.5CPE matchmatch criteria | cpe:2.3:a:apache:jmeter:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.7 Bluesky, 0.4 Mastodon, and 1.7 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.