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CVE-2019-13402· NVD / CVE Program· CNA mitre

/usr/sbin/default.sh and /usr/apache/htdocs/cgi-bin/admin/hardfactorydefault.cgi on Dynacolor FCM-MB40 v1.2.0.0 devices implement an incompl

/usr/sbin/default.sh and /usr/apache/htdocs/cgi-bin/admin/hardfactorydefault.cgi on Dynacolor FCM-MB40 v1.2.0.0 devices implement an incomplete factory-reset process. A backdoor can persist because neither system accounts nor the set of services is reset.

HighCVSS 8.8 · v3.0—No exploit No fix recorded
Published
Jul 7, 2019
Updated
Jun 16, 2026
EPSS
1.5% · 74th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.5%

Affected systems

VendorProduct
fortinetfcm-mb40 firmware
fortinetfcm-mb40

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fortinet fcm-mb40 firmware1.2.0.0

Same product

fortinet: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-13400Dynacolor FCM-MB40 v1.2.0.0 use /etc/appWeb/appweb.pass to store administrative web-interface credentials in cleartext.
    39Monitor
  • CVE-2019-13401Dynacolor FCM-MB40 v1.2.0.0 devices have CSRF in all scripts under cgi-bin/.
    35Monitor
  • CVE-2019-13398Dynacolor FCM-MB40 v1.2.0.0 devices allow remote attackers to execute arbitrary commands via a crafted parameter to a CGI script, as demonst
    29Monitor
  • CVE-2019-13399Dynacolor FCM-MB40 v1.2.0.0 devices have a hard-coded SSL/TLS key that is used during an administrator's SSL conversation.
    23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-212 · Improper Removal of Sensitive Information Before Storage or Transfer

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

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