CVE-2026-42790

A flaw was found in Erlang OTP publickey. This improper certificate validation vulnerability allows a subordinate Certificate Authority CA with restricted DNS nameConstraints to bypass these restrictions. By issuing a leaf certificate that lacks a Subject Alternative Name SAN but contains a craft...

CVE-2026-42791

Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows forged OCSP responses signed with an expired responder certificate to be accepted as valid. OCSP response verification in pubkeyocsp:verifyresponse/5 and pubkeyocsp:isauthorizedresponder/3 in...

CVE-2026-42791

Summary: CVE-2026-42791 is an improper certificate validation weakness in Erlang OTP’s public_key/pubkey_ocsp module. OCSP response verification (pubkey_ocsp:verify_response/5 and pubkey_ocsp:is_authorized_responder/3) fails to enforce the validity period (notBefore/notAfter) of the OCSP responde...

The vulnerability of theOTP library set up in the Erlang programming language, related to deficiencies in handling http requests, allows attackers to carry out attacks by replacing HTTP requests.

The vulnerability of theOTP library in the Erlang programming language is related to deficiencies in handling http requests. Exploiting this vulnerability allows a malicious actor to carry out attacks by replacing HTTP requests...

Showboat Linux Malware Hits Middle East Telecom with SOCKS5 Proxy Backdoor

Cybersecurity researchers have disclosed details of a new Linux malware dubbed Showboat that has been put to use in a campaign targeting a telecommunications provider in the Middle East since at least mid-2022. "Showboat is a modular post-exploitation framework designed for Linux systems, capable...

Why Canadian Telecom Providers Are Prime Targets for Cyberattacks

Canadian telecom providers face mounting cyber threats from ransomware, SIM swapping, data breaches, and nation-state attacks targeting critical infrastructure...

ThreatsDay Bulletin: Edge Plaintext Passwords, ICS 0-Days, Patch-or-Die Alerts and 25+ New Stories

Bad week. Turns out the easiest way to get hacked in 2026 is still the same old garbage: shady packages, fake apps, forgotten DNS junk, scam ads, and stolen logins getting dumped into Discord channels like it’s normal. Some of these attack chains don’t even feel sophisticated anymore. More like...

CVE-2026-7780

A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udmstateoperational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The...

CTEM for Telecom Companies

Protect Network Infrastructure. Prevent Service Disruption. Secure 5G, IoT, and Subscriber Data. Telecommunications companies operate the most interconnected infrastructure on the planet. Your networks carry voice, data, and critical services for millions of subscribers, enterprises, and governme...

CTEM for Telecom Companies | Cybersecurity for Telecommunications

Protect Critical Infrastructure. Prevent Service Disruption. Secure Subscriber Data at Scale. Telecom companies operate some of the most complex, high-value attack surfaces in any industry. With billions of connected devices, legacy protocols like SS7 still in production, and 5G rollouts expandin...

Fake CAPTCHA scam turns a quick click into a costly phone bill

Researchers have documented a long‑running campaign that uses fake CAPTCHA pages to trick mobile users into sending dozens of international SMS messages in the background. If you’ve spent any time on today’s web, CAPTCHAs may seem like background noise: click a few traffic lights, prove you’re...

Discord Sleuths Gained Unauthorized Access to Anthropic’s Mythos

Plus: Spy firms tap into a global telecom weakness to track targets, 500,000 UK health records go up for sale on Alibaba, Apple patches a revealing notification bug, and more...

[SECURITY] Fedora 44 Update: erlang-26.2.5.19-1.fc44

Erlang is a general-purpose programming language and runtime environment. Erlang has built-in support for concurrency, distribution and fault tolerance. Erlang is used in several large telecommunication systems from Ericsson...

CVE-2026-32147

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in Erlang OTP ssh sshsftpd module allows an authenticated SFTP user to modify file attributes outside the configured chroot directory. The SFTP daemon sshsftpd stores the raw, user-supplied path in file...

Hiding an Ear in Plain Sight: On the Practicality and Implications of Acoustic Eavesdropping with Telecom Fiber Optic Cable

Optical fibers are widely regarded as reliable communication channels due to their resistance to external interference and low signal loss. This paper demonstrates a critical side channel within telecommunication optical fiber that allows for acoustic eavesdropping. By exploiting the sensitivity ...

Hiding in the Tunnels: Unmasking the New Stealthy BPFDoor Variants

This is Rapid7's whitepaper discussing BPFDoor variants. Advanced persistent threats APTs are locked in a continuous arms race with network defenders. As static indicators of compromise IoCs for the notorious BPFDoor malware became widely deployed by security vendors, the threat actors went back ...

UBUNTU-CVE-2026-32144

Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in publickey:pkixocspvalidate/5 does not verify that a CA-designated responder certificate...

DEBIAN-CVE-2026-28810

Generation of Predictable Numbers or Identifiers vulnerability in Erlang/OTP kernel inetres, inetdb modules allows DNS Cache Poisoning. The built-in DNS resolver inetres uses a sequential, process-global 16-bit transaction ID for UDP queries and does not implement source port randomization...

CVE-2026-28810 Predictable DNS Transaction IDs Enable Cache Poisoning in Built-in Resolver

Generation of Predictable Numbers or Identifiers vulnerability in Erlang/OTP kernel inetres, inetdb modules allows DNS Cache Poisoning. The built-in DNS resolver inetres uses a sequential, process-global 16-bit transaction ID for UDP queries and does not implement source port randomization...

EUVD-2026-19582

Generation of Predictable Numbers or Identifiers vulnerability in Erlang/OTP kernel inetres, inetdb modules allows DNS Cache Poisoning. The built-in DNS resolver inetres uses a sequential, process-global 16-bit transaction ID for UDP queries and does not implement source port randomization...