HH
Product
Hirschmann HiOS
by Belden · last CVE Apr 3, 2026
16
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 8High 6Medium 2Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2018-25236
9.8
1%
Apr 3
Hirschmann HiOS HiSecOS Authentication Bypass via HTTP Management
Affected: through 05.07; through 06.1.04; through 06.2.00
CVE-2021-27734
9.8
1%
May 17
Hirschmann HiOS 07.1.01, 07.1.02, and 08.1.00 through 08.5.xx and HiSecOS 03.3.00 through 03.5.01 allow remote attackers to change the credentials of existing users
Affected: 08.1.00 before 08.6.00; 07.1.01; 07.1.02
CVE-2020-6994
9.8
2%
Apr 3
A buffer overflow vulnerability was found in some devices of Hirschmann Automation and Control HiOS and HiSecOS
Affected: through 07.0.02
CVE-2019-12262
9.8
4%
Aug 14
Wind River VxWorks 6.6, 6.7, 6.8, 6.9 and 7 has Incorrect Access Control in the RARP client component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12261
9.8
9%
Aug 9
Wind River VxWorks 6.7 though 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 3 of 4)
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12260
9.8
23%
Aug 9
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 2 of 4)
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12255
9.8
75%
Aug 9
Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4)
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12256
9.8
27%
Aug 9
Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12257
8.8
84%
Aug 9
Wind River VxWorks 6.6 through 6.9 has a Buffer Overflow in the DHCP client component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12263
8.1
3%
Aug 9
Wind River VxWorks 6.9.4 and vx7 has a Buffer Overflow in the TCP component (issue 4 of 4)
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2020-37216
7.5
1%
Apr 3
Hirschmann HiOS EtherNet/IP Stack Denial of Service
Affected: 05.00.00 through 08.0.00
CVE-2019-12258
7.5
23%
Aug 9
Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12259
7.5
16%
Aug 9
Wind River VxWorks 6.6, 6.7, 6.8, 6.9 and vx7 has an array index error in the IGMPv3 client component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2019-12264
7.1
8%
Aug 5
Wind River VxWorks 6.6, 6.7, 6.8, 6.9.3, 6.9.4, and Vx7 has Incorrect Access Control in IPv4 assignment by the ipdhcpc DHCP client component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
CVE-2020-9307
6.5
1%
Feb 11
Hirschmann OS2, RSP, and RSPE devices before HiOS 08.3.00 allow a denial of service
Affected: 07.0.04 before 07.1.00; 08.0.00 before 08.3.00
CVE-2019-12265
5.3
60%
Aug 9
Wind River VxWorks 6.5, 6.6, 6.7, 6.8, 6.9.3 and 6.9.4 has a Memory Leak in the IGMPv3 client component
Affected: through 07.0.07; through 07.5.01; through 07.2.04; through 05.3.06
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