Stack-based buffer overflow in the RPC interface for the Message Engine (mediasvr.exe) in CA BrightStor ARCServe BackUp v9.01 through R11.5, and Enterprise Backup r10.5, allows remote attackers to execute arbitrary code via a long argument in the 0x10d opnum.
Conclusion & alert: CVE-2007-5327 is rated High Risk (68.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 16.08%, 96th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 32.93% | 16.08% | -16.85% |
| 2 | 2026-06-01 | 32.12% | 32.93% | +0.81% |
| 3 | 2025-03-30 | — | 32.12% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| broadcom | brightstor_arcserve_backup | 9.01 | cpe:2.3:a:broadcom:brightstor_arcserve_backup:9.01:*:*:*:*:*:*:* |
| broadcom | brightstor_arcserve_backup | 10.5 | cpe:2.3:a:broadcom:brightstor_arcserve_backup:10.5:*:*:*:*:*:*:* |
| broadcom | brightstor_arcserve_backup | 11 | cpe:2.3:a:broadcom:brightstor_arcserve_backup:11:*:*:*:*:*:*:* |
| broadcom | brightstor_arcserve_backup | 11.1 | cpe:2.3:a:broadcom:brightstor_arcserve_backup:11.1:*:*:*:*:*:*:* |
| broadcom | brightstor_arcserve_backup | 11.5 | cpe:2.3:a:broadcom:brightstor_arcserve_backup:11.5:*:*:*:*:*:*:* |
| broadcom | brightstor_enterprise_backup | 10.5 | cpe:2.3:a:broadcom:brightstor_enterprise_backup:10.5:*:*:*:*:*:*:* |