XStream — known exploited vulnerabilities
The CISA Known Exploited Vulnerabilities catalog (KEV) lists vulnerabilities that CISA has confirmed are being exploited in the wild; U.S. federal civilian agencies are required to remediate each entry by its due date. This page joins the KEV entries for XStream with NVD CVSS scores and CISA's ransomware-campaign flag. See our methodology or browse all CVEs.
Key findings
CISA's Known Exploited Vulnerabilities catalog lists 1 XStream vulnerability confirmed as exploited in the wild across 1 product; none is currently flagged as used in known ransomware campaigns. All entries affect a single product: XStream. CISA added 1 entry in 2023, compared with 0 in 2022. Across the 1 entry with an NVD CVSS score (100% of the total), the average score is 8.5; none is rated critical by NVD. The most recent addition is CVE-2021-39144 (XStream Remote Code Execution Vulnerability), added on 2023-03-10.
Affected products
| Product | Entries | Share |
|---|---|---|
| XStream | 1 | 100% |
Entries added per year
By date added to the KEV catalog
Exploited XStream vulnerabilities (1)
Newest first. CVSS scores from NVD where available.
| CVE | Product | Vulnerability | Date added | Ransomware | CVSS |
|---|---|---|---|---|---|
| CVE-2021-39144 | XStream | XStream Remote Code Execution Vulnerability | 2023-03-10 | — | HIGH8.5 |
Source: CISA Known Exploited Vulnerabilities catalog, joined with NIST NVD CVSS data. Vendor names are normalized across spellings. Compare all vendors.