CVE-2026-36340
RCE in Krayin CRM v2.1.5 via compose email, fixed in v2.1.6
Is CVE-2026-36340 being exploited?
Not confirmed. CVE-2026-36340 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.57% probability of exploitation in the next 30 days.
How severe is CVE-2026-36340?
CVE-2026-36340 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-36340?
Yes. A fix has been recorded for CVE-2026-36340. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-36340 affect?
CVE-2026-36340 affects Krayin CRM v2.1.5 (pre-2.1.6). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-36340?
Upgrade to 2.1.6+; test in staging before prod
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution on the CRM server via crafted compose-email input
Patch when possible