All news with #stack overflow tag

Emerson Appleton UPSMON-PRO Stack Overflow, RCE

⚠ Emerson's Appleton UPSMON-PRO contains a stack-based buffer overflow that can be triggered remotely via UDP port 2601. A crafted UDP packet can overwrite stack memory and enable arbitrary code execution with SYSTEM privileges if UPSMONProService traffic is not validated; the issue is tracked as CVE-2024-3871 and carries high severity (CVSS v3.1 9.8; CVSS v4 9.3). Affected versions are 2.6 and earlier; Emerson lists the product as End of Life, and CISA advises replacing unsupported units or applying mitigations such as blocking UDP 2601, isolating monitoring networks, filtering oversized packets, and monitoring for service crashes.

Canon TTF Printer Vulnerability Allows Remote Code Execution

🖨️ Independent researcher Peter Geissler disclosed a critical vulnerability (CVE-2024-12649) in certain Canon printers that can be triggered simply by printing an XPS document containing a malicious TTF font. The exploit abuses TTF hinting instructions to overflow a virtual-machine stack in the printer’s font engine, allowing code execution on devices running Canon’s DryOS. Canon has issued firmware updates, but organizations should promptly patch, restrict printer exposure, and segment printers to reduce risk.

Talos Discloses TruffleHog, Fade In, and BSAFE Flaws

🔒 Cisco Talos’ Vulnerability Discovery & Research team disclosed multiple vulnerabilities affecting TruffleHog, Fade In, and Dell BSAFE Crypto-C, including arbitrary code execution, out-of-bounds write/use-after-free, and integer/stack overflow issues. The issues were reported by Talos researchers and external collaborators and vendors have issued patches following Cisco’s disclosure policy. Users should apply vendor updates, deploy updated detection rules such as Snort signatures, and consult Talos advisories for indicators and recommended mitigations.

Fuji Electric Monitouch V-SFT-6 Buffer Overflow Advisory

⚠️ Fuji Electric Monitouch V-SFT-6 (v6.2.7.0) contains two buffer overflow vulnerabilities — a heap-based and a stack-based overflow — triggered by specially crafted project files. Identified as CVE-2025-54496 and CVE-2025-54526, both carry CVSS v3.1 scores of 7.8 and CVSS v4 scores of 8.4. Successful exploitation could crash the HMI and may permit code execution; the vendor issued fixes in V6.2.8.0 and recommends updating to V6.2.9.0 or later.

Legacy Flaws in Network Edge Devices Threaten Orgs Today

🔒 Enterprises' network edge devices — firewalls, VPNs, routers, and email gateways — are increasingly being exploited due to longstanding 1990s‑era flaws such as buffer overflows, command and SQL injections. Researchers tracked dozens of zero‑day exploits in 2024 and continuing into 2025 that affected vendors including Fortinet, Palo Alto Networks, Cisco, Ivanti, and others. These appliances are attractive targets because they are remotely accessible, often lack endpoint protections and centralized logging, and hold privileged credentials, making them common initial access vectors for state‑affiliated actors and ransomware groups.

OpenPLC and Planet WGR-500: Multiple Vulnerabilities

⚠️ Cisco Talos disclosed vulnerabilities affecting OpenPLC and the Planet WGR-500 industrial router, including a ModbusTCP denial-of-service and multiple critical flaws in HTTP-handling functions. The OpenPLC issue (TALOS-2025-2223 / CVE-2025-53476) can be triggered by a crafted series of TCP connections to exhaust the ModbusTCP server. Planet WGR-500 vulnerabilities (TALOS-2025-2226–2229 / CVE-2025-54399–54406, CVE-2025-48826) include stack-based buffer overflows, format string, and OS command injection flaws that may lead to memory corruption or arbitrary command execution.

CISA Adds Five Vulnerabilities to KEV Catalog; Federal Risk

⚠️ CISA added five vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog on Sept. 29, 2025, citing evidence of active exploitation. The newly listed issues are CVE-2021-21311 (Adminer SSRF), CVE-2025-20352 (Cisco IOS/IOS XE stack overflow), CVE-2025-10035 (Fortra GoAnywhere deserialization), CVE-2025-59689 (Libraesva command injection), and CVE-2025-32463 (sudo untrusted-control vulnerability). Federal Civilian Executive Branch agencies must remediate these under BOD 22-01, and CISA urges all organizations to prioritize timely fixes as part of standard vulnerability management.

Hitachi Energy RTU500 Series: Multiple DoS Vulnerabilities

⚠️ Hitachi Energy reported multiple vulnerabilities in the RTU500 series including null pointer dereference, XML parser flaws, heap and stack buffer overflows, integer overflow, and IEC 61850 message validation errors. Several CVEs have been assigned (e.g., CVE-2023-2953, CVE-2024-45490–45492, CVE-2024-28757, CVE-2025-39203, CVE-2025-6021) and the highest CVSS v4 score is 8.2. Exploitation could cause Denial-of-Service conditions such as device reboots or disconnects. Hitachi Energy provides firmware updates for affected 12.7.x–13.7.x releases and CISA recommends patching, minimizing network exposure, applying segmentation, and using secure remote access.

Siemens UMC: Remote Code Execution and Denial-of-Service

🔐 Siemens has disclosed multiple vulnerabilities in the integrated User Management Component (UMC) that could allow unauthenticated remote attackers to execute arbitrary code or cause denial-of-service. A stack-based buffer overflow (CVE-2025-40795) and several out-of-bounds read issues (CVE-2025-40796–40798) are reported, with CVSS v4 scores up to 9.3. Siemens recommends updating UMC to V2.15.1.3 or later and, where feasible, blocking TCP ports 4002 and 4004; Siemens notes no fixes are planned for SIMATIC PCS neo V4.1 and V5.0.

Microsoft September 2025 Patch Tuesday: 86 Fixes Guidance

🔒Microsoft released its September 2025 security update addressing 86 vulnerabilities across Windows, Office, DirectX, Hyper-V and related components. Microsoft reported no active in-the-wild exploitation but identified eight flaws where exploitation is more likely, including a network RCE in NTFS (CVE-2025-54916). Talos published Snort rules to detect attempts and recommends administrators prioritize patches and update IDS/IPS signatures promptly.

Delta Electronics COMMGR: Remote Code Execution Risks

⚠️ Delta Electronics has identified two critical vulnerabilities in COMMGR (v2.9.0 and earlier) — a stack-based buffer overflow (CVE-2025-53418) and a code injection flaw (CVE-2025-53419) — that can enable arbitrary code execution via crafted .isp files. Delta and CISA rate the combined risk as high (CISA lists CVSS v4 8.8) and recommend upgrading to v2.10.0 or later. Additional mitigations include network segmentation, limiting Internet exposure, and using secure remote access methods. CISA reports no known public exploitation at this time.