CyberSecBulletin

Siemens vulnerabilities

We track 1,652 vulnerabilities in Siemens products across 60+ products. 1,648 are rated high or critical, and 38 have been exploited in real attacks. The most recent was published on November 10, 2026.

1,652vulnerabilities
215critical
1,433high
38exploited
8.0average CVSS score

Latest Siemens vulnerabilities

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23281Linux

    In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix use-after-free in lbs_free_adapter() The lbs_free_adapter() function uses timer_delete() (non-synchronous) for both command_timer and tx_lockup_timer before the structure i

  • 7.5 High severity

    glibc: Out-of-bounds Read

    CVE-2026-4437The GNU C Library

    Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23278Linux

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always walk all pending catchall elements During transaction processing we might have more than one catchall element: 1 live catchall element and 1 pending element that i

  • 7.8 High severity

    Linux: Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

    CVE-2026-23274Linux

    In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels IDLETIMER revision 0 rules reuse existing timers by label and always call mod_timer() on timer->timer. If the label was created

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23273Linux

    In the Linux kernel, the following vulnerability has been resolved: macvlan: observe an RCU grace period in macvlan_common_newlink() error path valis reported that a race condition still happens after my prior patch. macvlan_common_newlink() might have made @d

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23272Linux

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: unconditionally bump set->nelems before insertion In case that the set is full, a new element gets published then removed without waiting for the RCU grace period, while

  • 7.8 High severity

    Linux: Concurrent Execution using Shared Resource with Improper Synchronization

    CVE-2026-23271Linux

    In the Linux kernel, the following vulnerability has been resolved: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software event

  • 7.5 High severity

    nghttp2: Reachable Assertion

    CVE-2026-27135Nghttp2

    nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2`

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23270Linux

    In the Linux kernel, the following vulnerability has been resolved: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks As Paolo said earlier [1]: "Since the blamed commit below, classify can return TC_ACT_CONSUMED while the current

  • 7.8 High severity

    Linux: Improper Initialization

    CVE-2026-23253Linux

    In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvb_dvr_open() calls dvb_ringbuffer_init() when a new reader opens the DVR device. dvb_ringbuffer_init() calls init_waitqueu

  • 7.8 High severity

    Linux: Out-of-bounds Write

    CVE-2026-23243Linux

    In the Linux kernel, the following vulnerability has been resolved: RDMA/umad: Reject negative data_len in ib_umad_write ib_umad_write computes data_len from user-controlled count and the MAD header sizes. With a mismatched user MAD header size and RMPP header

  • 7.5 High severity

    Linux: NULL Pointer Dereference

    CVE-2026-23242Linux

    In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data(

  • 7.5 High severity

    openssh: Use of Uninitialized Resource

    CVE-2026-3497UbuntuEPSS 2.38%

    Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on a

  • 7.5 High severity

    RUGGEDCOM CROSSBOW Station Access Controller…: Improper Clearing of Heap Memory Before Release

    CVE-2025-70873Siemens

    An information disclosure issue in the zipfileInflate function in the zipfile extension in SQLite v3.51.1 and earlier allows attackers to obtain heap memory via supplying a crafted ZIP file.

  • 7.1 High severity

    SICAM SIAPP SDK: External Control of File Name or Path

    CVE-2026-25605Siemens

    A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). The affected application performs file deletion without properly validating the file path or target. An attacker could delete files or sockets that the affected process has permiss

  • 7.8 High severity

    SICAM SIAPP SDK: External Control of File Name or Path

    CVE-2026-25573Siemens

    A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). The affected application builds shell commands with caller-provided strings and executes them. An attacker could influence the executed command, potentially resulting in command in

  • 7.8 High severity

    SICAM SIAPP SDK: Stack-based Buffer Overflow

    CVE-2026-25570Siemens

    A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). The SICAM SIAPP SDK does not perform checks on input values potentially resulting in stack overflow. This could allow an attacker to perform code execution and denial of service.

  • 7.8 High severity

    SICAM SIAPP SDK: Out-of-bounds Write

    CVE-2026-25569Siemens

    A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). An out-of-bounds write vulnerability exists in SICAM SIAPP SDK. This could allow an attacker to write data beyond the intended buffer, potentially leading to denial of service, or

  • 9.6 Critical severity

    SIMATIC Drive Controller CPU 1504D TF: Improper Neutralization of Directives in Dynamically Evaluated Code

    CVE-2025-40943Siemens

    Affected devices do not properly sanitize contents of trace files. This could allow an attacker to inject code through social engineering an authorized user, who has the function right "Read diagnostics", to import a specially crafted trace file. The malicious

  • 7.5 High severity

    Red Hat Ansible Automation Platform 2.5 for…: Uncontrolled Resource Consumption

    CVE-2025-69534Red Hat

    Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParser to raise an unhandled AssertionError during Markdown parsing. Because Python-Markdown does not catch this exception, any application that p

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23231LinuxEPSS 1.04%

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks

  • 9.8 Critical severity

    Apache Artemis: Missing Authentication for Critical Functionality

    CVE-2026-27446ApacheEPSS 11.4%

    Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an att

  • 7.1 High severity

    Linux: Out-of-bounds Read

    CVE-2026-23204Linux

    In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointer() does not fully validate negative @offset values. Use skb_header_pointer_careful() instead. GangMin Kim provided a repo

  • 7.0 High severity

    Linux: Concurrent Execution using Shared Resource with Improper Synchronization

    CVE-2025-71221Linux

    In the Linux kernel, the following vulnerability has been resolved: dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue() Add proper locking in mmp_pdma_residue() to prevent use-after-free when accessing descriptor list and descriptor contents. The rac

  • 9.8 Critical severity

    Linux: Out-of-bounds Write

    CVE-2026-23112Linux

    In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offse

  • 7.8 High severity

    Linux: Use After Free

    CVE-2026-23111LinuxEPSS 1.13%

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() nft_map_catchall_activate() has an inverted element activity check compared to its non-catchall counterpart nft_

  • 7.0 High severity

    Red Hat Hardened Images: External Control of File Name or Path

    CVE-2026-26158Red Hat

    A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevate

  • 7.0 High severity

    Red Hat Hardened Images: External Control of File Name or Path

    CVE-2026-26157Red Hat

    A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to

  • 7.2 High severity

    FortiOS: Use of Externally-Controlled Format String

    CVE-2025-64157FortinetEPSS 1.49%

    A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0 all versions allows an authenticated admin to execute unauthorized code or commands via s

  • 7.8 High severity

    SINEC NMS: Uncontrolled Search Path Element

    CVE-2026-25656Siemens

    A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3), User Management Component (UMC) (All versions < V2.15.2.1). The affected application permits improper modification of a configuration file by a low-privileged user. This could allow an

  • 7.8 High severity

    SINEC NMS: Uncontrolled Search Path Element

    CVE-2026-25655Siemens

    A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP2). The affected application permits improper modification of a configuration file by a low-privileged user. This could allow an attacker to load malicious DLLs, potentially leading to arb

  • 7.3 High severity

    Simcenter Femap: Out-of-bounds Read

    CVE-2026-23720Siemens

    A vulnerability has been identified in Simcenter Femap (All versions < V2512), Simcenter Nastran (All versions < V2512). The affected applications contains an out of bounds read vulnerability while parsing specially crafted NDB files. This could allow an attac

  • 7.3 High severity

    Simcenter Femap: Heap-based Buffer Overflow

    CVE-2026-23719Siemens

    A vulnerability has been identified in Simcenter Femap (All versions < V2512), Simcenter Nastran (All versions < V2512). The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted NDB files. This could allow an attacke

  • 7.3 High severity

    Simcenter Femap: Out-of-bounds Read

    CVE-2026-23718Siemens

    A vulnerability has been identified in Simcenter Femap (All versions < V2512), Simcenter Nastran (All versions < V2512). The affected applications contains an out of bounds read vulnerability while parsing specially crafted NDB files. This could allow an attac

  • 7.3 High severity

    Simcenter Femap: Out-of-bounds Read

    CVE-2026-23717Siemens

    A vulnerability has been identified in Simcenter Femap (All versions < V2512), Simcenter Nastran (All versions < V2512). The affected applications contains an out of bounds read vulnerability while parsing specially crafted XDB files. This could allow an attac

  • 7.3 High severity

    Simcenter Femap: Out-of-bounds Read

    CVE-2026-23716Siemens

    A vulnerability has been identified in Simcenter Femap (All versions < V2512), Simcenter Nastran (All versions < V2512). The affected applications contains an out of bounds read vulnerability while parsing specially crafted XDB files. This could allow an attac

  • 7.3 High severity

    Simcenter Femap: Out-of-bounds Write

    CVE-2026-23715Siemens

    A vulnerability has been identified in Simcenter Femap (All versions < V2512), Simcenter Nastran (All versions < V2512). The affected applications contains an out of bounds write vulnerability while parsing specially crafted XDB files. This could allow an atta

  • 7.8 High severity

    NX: Stack-based Buffer Overflow

    CVE-2026-22923Siemens

    A vulnerability has been identified in NX (All versions < V2512), NX (Managed Mode) (All versions < V2512). The affected application contains a data validation vulnerability that could allow an attacker with local access to interfere with internal data during

  • 7.6 High severity

    Polarion V2404: Improper Neutralization of Input During Web Page Generation

    CVE-2025-40587Siemens

    A vulnerability has been identified in Polarion V2404 (All versions < V2404.5), Polarion V2410 (All versions < V2410.2). The affected application allows arbitrary JavaScript code be included in document titles. This could allow an authenticated remote attacker

  • 7.8 High severity

    In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for…

    CVE-2026-23083Linux

    In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for FOU_ATTR_IPPROTO. fou_udp_recv() has the same problem mentioned in the previous patch. If FOU_ATTR_IPPROTO is set to 0, skb is not freed by fou_udp_recv() nor "resubmit"