CVE-2020-12514
Pepper+Fuchs Comtrol IO-Link Master NULL Pointer Dereference
Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Pepper+Fuchs Comtrol IO-Link Master NULL Pointer Dereference
Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd
- Record
CVE-2020-12514- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
EUVDEUVD-2020-4816
Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd
- Record
EUVD-2020-4816- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pvhr-37pj-qc85 No score
Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer...
Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd
- Record
GHSA-pvhr-37pj-qc85- Weakness
- CWE-476
- Updated
- 2026-11-02
NVD
Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd
- Record
CVE-2020-12514- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
Affected products
- pepper+fuchs comtrol io-link master
- pepperl-fuchs io-link master 4-eip firmware
- pepperl-fuchs io-link master 4-pnio firmware
- pepperl-fuchs io-link master 8-eip-l firmware
- pepperl-fuchs io-link master 8-eip firmware
- pepperl-fuchs io-link master 8-pnio-l firmware
- pepperl-fuchs io-link master 8-pnio firmware
- pepperl-fuchs io-link master dr-8-eip-p firmware
- pepperl-fuchs io-link master dr-8-eip-t firmware
- pepperl-fuchs io-link master dr-8-eip firmware
- pepperl-fuchs io-link master dr-8-pnio-p firmware
- pepperl-fuchs io-link master dr-8-pnio-t firmware
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History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-12514 is a medium vulnerability (CVSS 6.6) in Pepper+fuchs Comtrol Io-link Master, published January 22, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 63rd percentile. No source names a fixed version.