CVE-2016-3949
First published: Mon Jun 27 2016(Updated: )
Siemens SIMATIC S7-300 Profinet-enabled CPU devices with firmware before 3.2.12 and SIMATIC S7-300 Profinet-disabled CPU devices with firmware before 3.3.12 allow remote attackers to cause a denial of service (defect-mode transition) via crafted (1) ISO-TSAP or (2) Profibus packets.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens Simatic S7-300 With Profitnet Support Firmware | =3.2.11 | |
| Siemens Simatic S7-300 | ||
| Siemens Simatic S7-300 Without Profitnet Support Firmware | ||
| Siemens Simatic S7-300 Without Profitnet Support | =3.3.11 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2016-3949?
CVE-2016-3949 is classified as a high-severity vulnerability due to its potential to cause denial of service in affected Siemens devices.
How do I fix CVE-2016-3949?
To mitigate CVE-2016-3949, update the firmware to version 3.2.12 or higher for Profinet-enabled CPUs and to version 3.3.12 or higher for Profinet-disabled CPUs.
Which devices are affected by CVE-2016-3949?
CVE-2016-3949 affects Siemens SIMATIC S7-300 Profinet-enabled CPUs with firmware before 3.2.12 and Profinet-disabled CPUs with firmware before 3.3.12.
What type of attack does CVE-2016-3949 enable?
CVE-2016-3949 allows remote attackers to perform denial of service attacks via crafted ISO-TSAP or Profibus packets.
Is CVE-2016-3949 exploitable remotely?
Yes, CVE-2016-3949 is exploitable remotely, allowing attackers to send malicious packets to affect the operation of the device.
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- canonical/siemens simatic s7-300 with profitnet support firmware
- version/siemens simatic s7-300 with profitnet support firmware/3.2.11
- canonical/siemens simatic s7-300
- canonical/siemens simatic s7-300 without profitnet support firmware
- canonical/siemens simatic s7-300 without profitnet support
- version/siemens simatic s7-300 without profitnet support/3.3.11