Event Monitor Cyber
EM-20261106-ET8C VulnerabilityCritical severity

Critical UgCS Vulnerability (CVE-2026-59104)

CVE-2026-59104

Share
Status
Developing

Since : signals keep joining.

First Signal
Nov 06 21:41 UTCC8 EU Vulnerability Database (EUVD)
Page Born
Nov 06 22:17 UTCsecond source joined
Last Signal
Nov 07 00:31 UTC3 hours before snapshot
Sources
30 official · 3 research, news or crowd
Open For
4 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 06 22:17 UTC
    C6 NVD published
  2. Scored: reached
    Nov 06 22:17 UTC
    CVSS 9.3
  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

16:0018:0020:0022:00Nov 7BornC8 EU Vulnerability Database (EUVD)C6 NVD CVE API 2.0C29 CIRCL Vulnerability-Lookup

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

Signals

  1. GHSA-8f29-c49m-pq4g / CVE-2026-59104 (opens source in a new tab) UgCS server before 6.2 contains an authentication bypass in the HCI protocol login handler (LoginHandler) exposed on TCP port 3334. When the user database contains exactly one user (the default single-operator… Med severityDatabaseC29 CIRCL Vulnerability-Lookup
  2. CVE-2026-59104 (CVSS 9.3) (opens source in a new tab) UgCS server before 6.2 contains an authentication bypass in the HCI protocol login handler (LoginHandler) exposed on TCP port 3334. When the user database contains exactly one user (the default single-operator… Crit severityDatabaseC6 NVD CVE API 2.0
  3. EUVD-2026-118522 / CVE-2026-59104 (score 9.3) (opens source in a new tab) UgCS server before 6.2 contains an authentication bypass in the HCI protocol login handler (LoginHandler) exposed on TCP port 3334. When the user database contains exactly one user (the default single-operator… Crit severityDatabaseC8 EU Vulnerability Database (EUVD)