# Siemens SIMATIC S7-1500 TM MFP GNU/Linux subsystem vulnerabilities

Source: https://junglewise.ai/threats/technologies/simatic-s7-1500-tm-mfp-gnu-linux-subsystem  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/simatic-s7-1500-tm-mfp-gnu-linux-subsystem.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 11 vulnerabilities in Siemens SIMATIC S7-1500 TM MFP GNU/Linux subsystem: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-28390, was published on 7 April 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 11 (0 critical, 0 exploited in the wild)

## About Siemens SIMATIC S7-1500 TM MFP GNU/Linux subsystem

GNU/Linux subsystem for SIMATIC S7-1500 TM MFP programmable logic controller firmware.

## Latest Siemens SIMATIC S7-1500 TM MFP GNU/Linux subsystem vulnerabilities

- [CVE-2026-28390: OpenSSL NULL pointer dereference in CMS EnvelopedData processing](https://junglewise.ai/threats/cve-2026-28390-openssl-null-pointer-dereference-in-cms-envelopeddata-processing) (high, CVSS 7.5, published 7 Apr 2026)
- [CVE-2026-28389: OpenSSL NULL pointer dereference in CMS EnvelopedData processing](https://junglewise.ai/threats/cve-2026-28389-openssl-null-pointer-dereference-in-cms-envelopeddata-processing) (high, CVSS 7.5, published 7 Apr 2026)
- [CVE-2026-28387: OpenSSL use-after-free in DANE TLSA-based authentication](https://junglewise.ai/threats/cve-2026-28387-openssl-use-after-free-in-dane-tlsa-based-authentication) (high, CVSS 8.1, published 7 Apr 2026)
- [CVE-2023-50781: m2crypto Bleichenbacher timing attack in RSA decryption API](https://junglewise.ai/threats/cve-2023-50781-m2crypto-bleichenbacher-timing-attack-in-rsa-decryption-api) (high, CVSS 7.5, published 5 Feb 2024)
- [CVE-2024-24857: Linux Kernel race condition in Bluetooth device driver](https://junglewise.ai/threats/cve-2024-24857-linux-kernel-race-condition-in-bluetooth-device-driver) (medium, CVSS 4.6, published 5 Feb 2024)
- [CVE-2024-23307: Linux Kernel integer overflow in raid5_cache_count](https://junglewise.ai/threats/cve-2024-23307-linux-kernel-integer-overflow-in-raid5-cache-count) (medium, CVSS 4.4, published 25 Jan 2024)
- [CVE-2024-23848: Linux Kernel use-after-free in CEC framework](https://junglewise.ai/threats/cve-2024-23848-linux-kernel-use-after-free-in-cec-framework) (medium, CVSS 5.5, published 23 Jan 2024)
- [CVE-2023-1652: Linux Kernel use-after-free in NFS nfsd4_ssc_setup_dul](https://junglewise.ai/threats/cve-2023-1652-linux-kernel-use-after-free-in-nfs-nfsd4-ssc-setup-dul) (high, CVSS 7.1, published 29 Mar 2023)
- [CVE-2022-43945: Linux Kernel NFSD buffer overflow in RPC handling](https://junglewise.ai/threats/cve-2022-43945-linux-kernel-nfsd-buffer-overflow-in-rpc-handling) (high, CVSS 7.5, published 4 Nov 2022)
- [CVE-2022-38096: Linux Kernel NULL pointer dereference in vmwgfx driver](https://junglewise.ai/threats/cve-2022-38096-linux-kernel-null-pointer-dereference-in-vmwgfx-driver) (medium, CVSS 6.3, published 9 Sep 2022)
- [CVE-2021-4090: Linux Kernel NFSD out-of-bounds write in nfsd4_decode_bitmap4](https://junglewise.ai/threats/cve-2021-4090-linux-kernel-nfsd-out-of-bounds-write-in-nfsd4-decode-bitmap4) (high, CVSS 7.1, published 18 Feb 2022)

## Most severe Siemens SIMATIC S7-1500 TM MFP GNU/Linux subsystem vulnerabilities

- [CVE-2026-28387: OpenSSL use-after-free in DANE TLSA-based authentication](https://junglewise.ai/threats/cve-2026-28387-openssl-use-after-free-in-dane-tlsa-based-authentication) (high, CVSS 8.1, published 7 Apr 2026)
- [CVE-2023-50781: m2crypto Bleichenbacher timing attack in RSA decryption API](https://junglewise.ai/threats/cve-2023-50781-m2crypto-bleichenbacher-timing-attack-in-rsa-decryption-api) (high, CVSS 7.5, published 5 Feb 2024)
- [CVE-2026-28390: OpenSSL NULL pointer dereference in CMS EnvelopedData processing](https://junglewise.ai/threats/cve-2026-28390-openssl-null-pointer-dereference-in-cms-envelopeddata-processing) (high, CVSS 7.5, published 7 Apr 2026)
- [CVE-2026-28389: OpenSSL NULL pointer dereference in CMS EnvelopedData processing](https://junglewise.ai/threats/cve-2026-28389-openssl-null-pointer-dereference-in-cms-envelopeddata-processing) (high, CVSS 7.5, published 7 Apr 2026)
- [CVE-2022-43945: Linux Kernel NFSD buffer overflow in RPC handling](https://junglewise.ai/threats/cve-2022-43945-linux-kernel-nfsd-buffer-overflow-in-rpc-handling) (high, CVSS 7.5, published 4 Nov 2022)
- [CVE-2023-1652: Linux Kernel use-after-free in NFS nfsd4_ssc_setup_dul](https://junglewise.ai/threats/cve-2023-1652-linux-kernel-use-after-free-in-nfs-nfsd4-ssc-setup-dul) (high, CVSS 7.1, published 29 Mar 2023)
- [CVE-2021-4090: Linux Kernel NFSD out-of-bounds write in nfsd4_decode_bitmap4](https://junglewise.ai/threats/cve-2021-4090-linux-kernel-nfsd-out-of-bounds-write-in-nfsd4-decode-bitmap4) (high, CVSS 7.1, published 18 Feb 2022)
- [CVE-2022-38096: Linux Kernel NULL pointer dereference in vmwgfx driver](https://junglewise.ai/threats/cve-2022-38096-linux-kernel-null-pointer-dereference-in-vmwgfx-driver) (medium, CVSS 6.3, published 9 Sep 2022)
- [CVE-2024-23848: Linux Kernel use-after-free in CEC framework](https://junglewise.ai/threats/cve-2024-23848-linux-kernel-use-after-free-in-cec-framework) (medium, CVSS 5.5, published 23 Jan 2024)
- [CVE-2024-24857: Linux Kernel race condition in Bluetooth device driver](https://junglewise.ai/threats/cve-2024-24857-linux-kernel-race-condition-in-bluetooth-device-driver) (medium, CVSS 4.6, published 5 Feb 2024)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Siemens technologies

- [Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP](https://junglewise.ai/threats/technologies/simatic-s7-1500-cpu-1518-4-pn-dp-mfp): 204 vulnerabilities
- [Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP](https://junglewise.ai/threats/technologies/simatic-s7-1500-cpu-1518f-4-pn-dp-mfp): 83 vulnerabilities
- [Siemens SIMATIC CN 4100](https://junglewise.ai/threats/technologies/simatic-cn-4100): 79 vulnerabilities
- [Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP](https://junglewise.ai/threats/technologies/siplus-s7-1500-cpu-1518-4-pn-dp-mfp): 70 vulnerabilities
- [Siemens RUGGEDCOM APE1808](https://junglewise.ai/threats/technologies/ruggedcom-ape1808): 28 vulnerabilities
- [Siemens Ruggedcom Rox II](https://junglewise.ai/threats/technologies/ruggedcom-rox-ii): 16 vulnerabilities
- [Siemens RUGGEDCOM RST2428P](https://junglewise.ai/threats/technologies/ruggedcom-rst2428p): 16 vulnerabilities
- [Siemens ROX II](https://junglewise.ai/threats/technologies/rox-ii): 14 vulnerabilities
- [Siemens RUGGEDCOM CROSSBOW](https://junglewise.ai/threats/technologies/ruggedcom-crossbow): 13 vulnerabilities
- [Siemens SINEC OS](https://junglewise.ai/threats/technologies/sinec-os): 12 vulnerabilities
- [Siemens Solid Edge](https://junglewise.ai/threats/technologies/solid-edge): 12 vulnerabilities
- [Siemens SIMATIC Drive Controller CPU 1504D TF](https://junglewise.ai/threats/technologies/simatic-drive-controller-cpu-1504d-tf): 11 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Siemens SIMATIC S7-1500 TM MFP GNU/Linux subsystem vulnerabilities", https://junglewise.ai/threats/technologies/simatic-s7-1500-tm-mfp-gnu-linux-subsystem, 11 November 2026.