CVE-2026-124758

Integer underflow of the record data length in IODWrite requests

P-Net before 1.0.4 does not check the record data length of an IODWrite request to a non-user record index against the size of the record block header. The 32-bit length is reduced by the header size before it is passed to the record handlers, so a length smaller than the header underflows and the handlers receive a data length of about 65530. The fixed-size reads of the I&M and PDPort handlers can then read past the end of the session buffer. The result of the write is discarded. The attacker must have an established Application Relationship or be able to send in the context of one, and requires ADJACENT network access.

CVSS 4.0 · 2.3 Low EPSS n/a KEV · Not listed

Vendors

Rt-labs

Products

P-net

CVE-2026-124760

Alarm receiver stops delivering alarms after a malformed alarm notification

P-Net before 1.0.4 sets the alarm receiver state to waiting for confirmation before the data of a received alarm notification is parsed. If the parsing fails the state is not restored, and later alarm notifications of the same priority are discarded without acknowledge until the Application Relationship is released. The Application Relationship and the cyclic data exchange keep working. The attacker must be able to send an alarm notification in the context of an established Application Relationship and requires ADJACENT network access.

CVSS 4.0 · 2.3 Low EPSS n/a KEV · Not listed

Vendors

Rt-labs

Products

P-net

CVE-2026-124762

RPC reject, fault and cancel PDUs abort an Application Relationship

P-Net before 1.0.4 finds the RPC session of a received PDU by its activity UUID only, and a reject, fault or cancel PDU for the session aborts the Application Relationship, without checking that the PDU is the answer to a call of the device or where it comes from. A host with ADJACENT network access that has observed the activity UUID of the connection, which is sent in clear in every RPC request, can abort the Application Relationship with one PDU. It also allocates a session for an unknown activity UUID and changes the address stored for an existing session.

CVSS 4.0 · 6 Medium EPSS n/a KEV · Not listed

Vendors

Rt-labs

Products

P-net

CVE-2026-129116

C-Kermit 7.0.197 before 11.1.515 IKSD Authentication Bypass via Refused Certificate Login

C-Kermit from 7.0.197 before 11.1.515 contains an authentication bypass vulnerability in the IKSD SSL build that leaves Telnet authentication state at AUTH_VALID after a refused certificate login. Attackers holding a trusted certificate mapped to a refused account can log in as any other account with any password, gaining that account's shell access.

CVSS 4.0 · 7.7 High EPSS n/a KEV · Not listed

Vendors

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Products

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CVE-2026-129117

C-Kermit 8.0.200 before 11.1.515 Missing Hostname Verification in AUTHENTICATION SSL

C-Kermit 8.0.200 before 11.1.515 contains an improper certificate validation vulnerability that allows machine-in-the-middle attackers to impersonate Telnet servers because ssl_reply() never calls ssl_check_server_name(). Attackers can refuse START-TLS, offer Telnet AUTHENTICATION SSL, and present any trusted CA certificate to capture user credentials and session data.

CVSS 4.0 · 7.6 High EPSS n/a KEV · Not listed

Vendors

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Products

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CVE-2026-129118

C-Kermit 8.0.200 before 11.1.515 Improper Certificate Hostname Matching via dNSName_cmp

C-Kermit 8.0.200 before 11.1.515 contains an improper certificate hostname validation vulnerability that allows attackers to impersonate hosts by abusing wildcard matching in dNSName_cmp() in ck_ssl.c. Attackers holding a trusted certificate with over-matching names containing asterisks, question marks, brackets, or empty labels can intercept credentials and data over Telnet, FTP, and HTTP TLS connections.

CVSS 4.0 · 7.6 High EPSS n/a KEV · Not listed

Vendors

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Products

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CVE-2026-129119

C-Kermit 6.0.192 before 11.1.515 File Collision Protection Bypass via RESEND

C-Kermit from 6.0.192 before 11.1.515 contains a file collision protection bypass that allows malicious senders to append data to existing files by marking transfers as RESEND. The gattr() function in ckcfn3.c clears the REJECT discard flag and switches to APPEND without a RECEIVE CONFIRM prompt, letting attackers modify files such as shell startup files.

CVSS 4.0 · 7.1 High EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129120

C-Kermit 11.0.506 before 11.1.515 RECEIVE CONFIRM Bypass via Recursive GET

C-Kermit 11.0.506 before 11.1.515 contains a RECEIVE CONFIRM bypass vulnerability that allows malicious Kermit servers to write unrequested files without prompting by abusing recursive GET root computation in ckcfns.c. Attackers can send files such as .ssh/authorized_keys or shell startup files under the current directory, which rq_under_root() accepts silently, enabling persistent access or code execution.

CVSS 4.0 · 5.9 Medium EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129121

C-Kermit 8.0.200 before 11.1.515 Path Traversal via FTP MGET /RECURSIVE

C-Kermit 8.0.200 before 11.1.515 contains a path traversal vulnerability in doftpget() in ckcftp.c that allows malicious FTP servers to write files outside the intended directory. Attackers can return absolute paths, tilde names, or dot-dot components in NLST or MLSD listings during MGET /RECURSIVE to overwrite files like .bashrc, leading to code execution.

CVSS 4.0 · 6.9 Medium EPSS n/a KEV · Not listed

Vendors

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Products

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CVE-2026-129122

C-Kermit 6.0.192 before 11.1.515 Buffer Overflow via Telnet NEW-ENVIRON Negotiation

C-Kermit 6.0.192 before 11.1.515 contains a buffer overflow vulnerability in tn_snenv() in ckctel.c that allows malicious Telnet servers to corrupt client memory via crafted NEW-ENVIRON SEND subnegotiation. Malicious or machine-in-the-middle servers can send oversized variable names before authentication, overflowing a 16-byte stack buffer and a miscomputed heap buffer to corrupt stack and heap memory.

CVSS 4.0 · 7.7 High EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129123

C-Kermit 8.0.200 before 11.1.515 FTP Client Buffer Overflow via PBSZ and ADAT Replies

C-Kermit 8.0.200 before 11.1.515 contains a buffer overflow vulnerability in getreply() in ckcftp.c that allows malicious FTP servers to overwrite client memory by sending overlong security replies. Attackers controlling or intercepting an FTP server can send long PBSZ replies after AUTH TLS, or long ADAT replies in GSSAPI, Kerberos 4, and SRP builds, overflowing the static reply_buf with attacker-controlled bytes.

CVSS 4.0 · 8.7 High EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129124

C-Kermit before 11.1.515 OS Command Injection via REMOTE WHO and REMOTE SPACE

C-Kermit before 11.1.515 contains an OS command injection vulnerability that allows remote clients to execute shell commands by supplying unquoted arguments to REMOTE WHO or REMOTE SPACE. Attackers can append shell metacharacters to arguments passed through WHOCMD or SPACM2 to syscmd(), executing commands on the server host even when DISABLE HOST is set.

CVSS 4.0 · 9.2 Critical EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129125

C-Kermit 6.0.192 before 11.1.515 Command Execution via REMOTE QUERY

C-Kermit 6.0.192 before 11.1.515 contains a remote code execution vulnerability that allows Kermit clients to run shell commands on servers with host commands disabled by abusing REMOTE QUERY evaluation. Attackers can send a REMOTE QUERY invoking the command function, or define a macro via REMOTE ASSIGN and call execute to reach RUN, bypassing the nopush restriction and DISABLE HOST.

CVSS 4.0 · 9.2 Critical EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129126

C-Kermit before 11.1.515 Heap Buffer Overflow via putsrv() Packet Decoding

C-Kermit before 11.1.515 contains a heap buffer overflow vulnerability in putsrv() in ckcfns.c that allows malicious peers to write past the srvcmd buffer by sending crafted packets. Attackers can use Kermit repeat-count compression in server command, GET, or file-header packets to write attacker-chosen bytes beyond the heap buffer on servers or receiving instances.

CVSS 4.0 · 9.2 Critical EPSS n/a KEV · Not listed

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CVE-2026-129130

agent-device 0.21.36 Local File Disclosure via file:// Navigation in Open Command

agent-device from 0.21.36 before 0.21.37 contains a local file disclosure vulnerability that allows authenticated remote callers to read daemon-host files by opening file:// URLs. Attackers can send an open command with a file:// target through /rpc, then issue snapshot to read any plaintext file readable by the daemon account.

CVSS 4.0 · 7.1 High EPSS n/a KEV · Not listed

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CVE-2026-129131

Gameyfin before 2.6.2 Missing Authorization in Hilla Endpoints

Gameyfin before 2.6.2 contains a missing authorization vulnerability that allows unauthenticated attackers to bypass login-required mode by calling Hilla endpoints annotated with @AnonymousAllowed. Attackers can POST to synchronous endpoint methods such as GameEndpoint.sync, which LiveSubscriptionSecurity never checks, to retrieve game catalog metadata, libraries, platforms, plugins and game requests.

CVSS 4.0 · 6.9 Medium EPSS n/a KEV · Not listed

Vendors

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CVE-2026-129135

picoquic before 2026.11.05.3e2e3d3 Integer Overflow via TIME_STAMP Frame Decoder

picoquic before 2026.11.05.3e2e3d3 contains an integer overflow vulnerability in picoquic_decode_time_stamp_frame() that allows remote QUIC peers to corrupt stored timestamps by sending oversized TIME_STAMP values. Attackers on connections negotiating the TIME_STAMP extension can send large values shifted by ack_delay_exponent to wrap the result, corrupting RTT and bandwidth estimation and degrading congestion control.

CVSS 4.0 · 6.3 Medium EPSS n/a KEV · Not listed

Vendors

Privateoctopus

Products

Picoquic

CVE-2026-124279

Streaming request body limit enforced only after an 8 MB read in elixir-grpc grpc_server

Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc_server allows unauthenticated attackers to exhaust server memory via client-streaming or bidirectional-streaming requests. The streaming read clause of GRPC.Server.Adapters.Cowboy.Handler.info/3 (grpc_server/lib/grpc/server/adapters/cowboy/handler.ex) asks Cowboy for up to 8,000,000 bytes per read and compares the running total with max_body_size only after the read returns. The gRPC length prefix of a message is not checked before the message is buffered. Each stream can therefore buffer up to one full read beyond the configured limit before it is refused, and many concurrent streams exhaust node memory. Releases before 1.0.6 apply no limit to streaming requests at all. This issue affects grpc_server: from 1.0.0 before 1.1.0.

CVSS 4.0 · 8.2 High EPSS n/a KEV · Not listed

Vendors

Elixir-grpc

Products

Grpc Server

CVE-2026-121809

CPU exhaustion via a truncated gRPC message on streaming RPCs in elixir-grpc grpc_server

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in elixir-grpc grpc_server and grpc allows unauthenticated attackers to occupy a BEAM scheduler indefinitely via a client-streaming or bidirectional-streaming request whose body ends inside a gRPC message. GRPC.Server.Adapters.Cowboy.read_stream/1 (grpc_server/lib/grpc/server/adapters/cowboy.ex, and the Cowboy adapter in grpc before the package split) asks for more data whenever the buffer does not hold a complete message. Once the request body has ended, every further read returns an empty chunk, so the buffer never changes and the function retries without end. A single 5-byte length prefix sent with END_STREAM keeps one scheduler busy for as long as the connection stays open, and repeated requests exhaust all schedulers. This issue affects grpc_server: from 1.0.0 before 1.1.0; grpc: from 0.3.1 before 1.0.0.

CVSS 4.0 · 8.2 High EPSS n/a KEV · Not listed

Vendors

Elixir-grpc

Products

Grpc Grpc Server

CVE-2026-0195

Out‑of‑Bounds Stack Read via DMA Fill Operation

In fill of dma.rs, there is a possible way to trigger an out of bounds stack read during direct memory access fills due to a logic error. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS 3.1 · 4.0 Medium EPSS < 1% KEV · Not listed

Vendors

Google

Products

Android