Tag: dos
27 entries tagged dos, latest activity first.
- CVE-2026-98432, Linux kernel IPv4 TCP: a use-after-free in connection setup, present since 4.4, has an Anthropic-built remote root exploit against MPTCP listeners that CloudLinux could not reproduce; Citrix XenServer, XCP-ng, MikroTik, Red Hat, Debian, CIQ and Amazon Linux have fixes, Ubuntu's are in progress and WatchGuard and Fortinet have none for their products (CVSS 9.8)
- Android telephony ('SMS of Death'): one hidden WAP Push message crashes the phone process and drops calls, emergency calls included; fixed for Android 14 to 17 in the October 2026 update according to the researcher, Android 12 and 13 stay exposed, public proof of concept
- CVE-2026-76418, Cisco Secure Firewall ASA and Secure FTD: a crafted request to the remote access SSL VPN reloads the device when a tunnel group uses secondary authentication; Cisco reports active exploitation and CISA lists it (CVSS 3.1 8.6)
- CVE-2026-15176 / CVE-2026-93479 / CVE-2026-97205, NGINX Open Source and NGINX Plus: three unauthenticated heap-corruption flaws rated CVSS 4.0 9.2, reachable only in specific configurations and fixed in 1.30.6 and 1.31.7
- CVE-2026-88779, Citrix NetScaler ADC and Gateway: a SAML-triggered memory overflow still hits appliances on the September fixed builds, and Citrix confirms targeted attacks (CVSS 4.0 8.7)
- CVE-2026-107406, Citrix NetScaler ADC and Gateway: a SAML-path memory overflow that can lead to code execution still affects the 2026-10-03 fixed builds on identity-provider appliances (CVSS 4.0 9.5)
- 22 CVEs in Tobit TeamDavid, a DACH-region self-hosted Microsoft 365 alternative: an unauthenticated heap leak hands over stored mailbox passwords, and Rollout 528 disables the affected function
- CVE-2026-20349, Cisco Secure Firewall ASA/FTD: one crafted HTTP request to the Remote Access SSL VPN reloads the device, exploitation confirmed, no workaround and a three-day KEV deadline
- CISA KEV adds three unrelated Linux kernel flaws in one day: kTLS receive-path logic error, AF_ALG race condition, netfilter ebtables SNAT out-of-bounds write
- CVE-2026-19490, Citrix NetScaler: an authentication bypass on Gateway and AAA virtual servers (CVSS 9.3), and on older builds no SAML configuration is needed to be exposed
- NatJack, sharing a NAT table is a trust relationship nobody declared: five named primitives against NAT state, of which only the downstream TCP hijack got a CVE on each platform
- Three misp-stix flaws put the CTI pipeline itself in scope: a crafted STIX document can set its own MISP distribution and sharing fields, kill a long-running importer, or bleed data into the next event
- Zoomsday; the Zoom client build that closes the first two annotation flaws leaves the third open, and the national advisory that raised the alarm covers only one of the three
- CVE-2026-19586, TP-Link Omada gateways: attacker-supplied data during OpenVPN connection establishment reaches command execution before authentication completes (CVSS 4.0 9.3)
- CISA publishes five protocol-level flaws in CPDLC over ATN-B1, reported by a Swiss armasuisse researcher, no mitigation available, and CISA assesses exploitation unlikely outside a lab
- Bouncy Castle for Java 1.85, 32 CVEs published three weeks after the silent fix: three certificate-validation bypasses and a static Diffie-Hellman key-recovery flaw rated critical
- CVE-2026-7849 and 19 more, Phoenix Contact CHARX SEC-3xxx EV charging controllers: unauthenticated command injection as root, unsigned firmware updates, and no fix released at disclosure
- CVE-2023-4346, KNX building-automation protocol: account-lockout DoS added to CISA KEV, no software patch (CVSS 7.5)
- Progress MOVEit Transfer: pre-auth SFTP DoS (CVE-2026-10699), admin table-scope bypass (CVE-2026-10698) and stored XSS (CVE-2026-11903), patched 2026.0.2
- CVE-2026-20744, Hydro-Québec EV-charging backend: unauthenticated OCPP WebSocket endpoint enables privilege escalation
- CVE-2026-55200, libssh2 heap out-of-bounds write in ssh2_transport_read() with public PoC; companion pre-auth DoS CVE-2026-55199
- CVE-2026-0647 et al. Rockwell Automation FLEX I/O unauthenticated password reset (CVSS 9.4) and Logix CIP denial-of-service, flagged by NCSC-CH
- CVE-2026-28318, SolarWinds Serv-U: unauthenticated DoS added to CISA KEV
- HTTP/2 Bomb (CVE-2026-49975): a single-connection memory-exhaustion DoS against every major web server
- DNS-resolver patch cluster, Unbound 1.25.1 (11 CVEs) and ISC BIND 9.18.49 / 9.20.23
- CVE-2026-41091: exploited Microsoft Defender link-following privilege escalation to SYSTEM, with the CVE-2026-45498 Defender denial of service
- Previously unknown flaw in Huawei enterprise router software caused POST Luxembourg's nationwide telecom outage of July 2025; no CVE ten months later