Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2025-52691
SmarterTools SmarterMail — Upload Arbitrary Files
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N C H H H 10.0 .8566 99.7 YES
AFFECTED
Product Versions Fixed
SmarterMail SmarterMail versions Build 9406 and earlier – —
TIMELINE
Jun 19 Reserved by CSA
Dec 29 Published (CNA: CSA)
Jan 26 Added to CISA KEV, remediation due 2026-02-16
Description
Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| June 19, 2025 | Reserved | Reserved by CSA |
| December 29, 2025 | Published | Published (CNA: CSA) |
| January 26, 2026 | KEV ADDED | Added to CISA KEV, remediation due 2026-02-16 |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| SmarterTools | SmarterMail | — | SmarterMail versions Build 9406 and earlier | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-52691 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.