Event Monitor Cyber
EM-20261112-N569 VulnerabilityCritical severity

Critical Fortinet FortiMail Vulnerability (CVE-2026-126148)

CVE-2026-126148

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Status
Developing

Since : signals keep joining.

First Signal
Nov 11 22:17 UTCC6 NVD CVE API 2.0
Page Born
Nov 12 03:41 UTCsecond source joined
Last Signal
Nov 12 03:41 UTC17 hours before snapshot
Sources
20 official · 2 research, news or crowd
Open For
18 hoursso far

Life Of This Page

  1. 1
    Born
    A second, independent source names it.
  2. 2
    Developing · Now
    New signals join; severity can move.
  3. 3
    Confirmed
    Not yet
    CISA KEV lists it, or exploitation in the wild is reported.
  4. 4
    Resolved
    Not yet
    Past the fix deadline and 14 days with no new signal.
  5. 5
    Archived
    Not yet
    30 days after resolved. Read only; the link keeps working. Reopens if it comes back.

The ID never changes, and earlier addresses keep working. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.

Vulnerability Lifecycle

  1. Disclosed: reached
    Nov 11 22:17 UTC
    C6 NVD published
  2. Scored: reached
    Nov 11 22:17 UTC
    CVSS 9.8 · EPSS 2.4%
  3. Exploited: not yet
    Not yet
    No exploitation reported
  4. Advisories: not yet
    Not yet
    None yet
  5. Vendor Response: not yet
    Not yet
    None in sources yet
  6. Resolved: not yet
    Not yet
    After 14 quiet days

Timeline

18:00Nov 1206:0012:00BornC6 NVD CVE API 2.0C31 Vulners (new public exploits)

Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.

Signals

  1. Public exploit: Exploit for CVE-2026-126148 (opens source in a new tab) # CVE-2026-126148 — FortiMail HA join-request OS command injection (CWE-78) | | | |---|---| | **CVE** | CVE-2026-126148 | | **Component** | Fortinet FortiMail — high-availability cluster, join-request handling… High severityResearch & NewsC31 Vulners (new public exploits)
  2. CVE-2026-126148 (CVSS 9.8) (opens source in a new tab) A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6 may allow an unauthenticated attacker… Crit severityDatabaseC6 NVD CVE API 2.0