Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
SmarterTools SmarterMail builds prior to 9610 contain a cryptographic weakness in the file and email sharing endpoints that use DES-CBC encryption with keys and initialization vectors derived from System.Random seeded with insufficient entropy, reducing the seed space to approximately 19,000 possible values. An unauthenticated attacker can use the attachment download endpoint as an oracle to determine the seed in use and derive encryption keys and initialization vectors to forge sharing tokens for arbitrary emails, attachments, or file storage contents without prior access to the targeted content.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-40514 SmarterTools SmarterMail builds prior to 9610 contain a cryptographic weakness in the file and email sharing endpoints that use DES-CBC encryption with keys and initi… https://www.cve.org/CVERecord?id=CVE-2026-40514
Post summary
The snippet references CVE-2026-40514, noting a cryptographic weakness in SmarterTools SmarterMail, but offers no further detail on PoC, exploitation, patches, or technical specifics.
CVE-2026-40514 Cryptographic Weakness in SmarterTools SmarterMail Prior to 9610 ... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-40514 Vulnerability Alert Subscriptions: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=1
Post summary
The tweet announces the existence of the CVE-2026-40514 vulnerability in SmarterTools SmarterMail and provides a link to a vulnerability details page, but offers no further technical, exploit, or mitigation information.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | smartertools | smartermail | - | - | - |