Description
A vulnerability was identified in FAST FAC1900R 20190827_2.0.2. Affected by this issue is the function copy_msg_element of the component devdiscover Service. Such manipulation leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published: 2026-09-28
Score: 10 Critical
EPSS: n/a
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

FAST FAC1900R 20190827_2.0.2 contains a stack‑based buffer overflow in the copy_msg_element function of the devdiscover Service. The flaw allows an attacker to overwrite the stack, which can lead to arbitrary code execution. The vulnerability is rated CVSS 10, indicating the maximum severity. It is identified as CWE‑119 and CWE‑121. The public exploit is available and the attack can be carried out remotely without authentication.

Affected Systems

The affected product is FAST FAC1900R, version 20190827_2.0.2. The vulnerability is tied to the devdiscover Service component in this specific build.

Risk and Exploitability

The CVSS score of 10 and the availability of a public exploit signal a high likelihood of real‑world exploitation. Because the EPSS score is not available, the risk is based on the evidence of public exploitation and the remote attack vector. The device is exposed to remote attackers that can trigger the overflow via the devdiscover Service. The vendor has not provided a response or patch at this time, so the vulnerability remains unmitigated in deployed systems.

Generated by OpenCVE AI on September 28, 2026 at 12:29 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the vendor’s patch or upgrade to a non‑vulnerable release of FAST FAC1900R once it is available.
  • If a patch is not yet released, isolate the device from external networks or block inbound traffic to the devdiscover Service using firewall rules to prevent remote exploitation.
  • Disable the devdiscover Service if it is not needed for device operation, or restrict its use to trusted internal networks.
  • Continuously monitor network activity and device logs for attempts to exploit the copy_msg_element endpoint, and stay informed about vendor advisories.

Generated by OpenCVE AI on September 28, 2026 at 12:29 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 28 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was identified in FAST FAC1900R 20190827_2.0.2. Affected by this issue is the function copy_msg_element of the component devdiscover Service. Such manipulation leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title FAST FAC1900R devdiscover Service copy_msg_element stack-based overflow
First Time appeared Fast
Fast fac1900r
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:a:fast:fac1900r:*:*:*:*:*:*:*:*
Vendors & Products Fast
Fast fac1900r
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 10, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}

Subscriptions

Fast Fac1900r
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-28T12:45:15.070Z

Reserved: 2026-09-27T14:30:37.900Z

Link: CVE-2026-101039

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-28T11:16:43.600

Modified: 2026-09-28T11:16:43.600

Link: CVE-2026-101039

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T12:30:17Z

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer

  • CWE-121

    Stack-based Buffer Overflow