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BIND 9.20.29 Fixes 14 Security Flaws Enabling DNSSEC Bypass and Denial-of-Service Attacks
ISC released BIND 9.20.29 patching 14 flaws, including two DNSSEC validation bypasses enabling cache poisoning and multiple denial-of-service bugs.
Internet Systems Consortium shipped BIND 9.20.29 (and 9.21.26) fixing 14 vulnerabilities affecting recursive and DNSSEC-validating resolvers. Key flaws include CVE-2026-77119 (CVSS 5.9), which lets injected NSEC3 records from sibling zones make forged answers appear validated, and CVE-2026-19941, enabling forged DNSSEC-validated NXDOMAIN responses. DoS issues include CVE-2026-19668 (CVSS 5.3, CPU exhaustion via crafted DS/DNSKEY key tags) and cache bloat bugs CVE-2026-81736 and CVE-2026-81563; CVE-2026-1903 fixes partially unsigned TSIG zone transfers and CVE-2026-78301 fixes out-of-zone record serving. ISC reports no active exploitation and says CVE-2026-19668 and CVE-2026-77119 have no workarounds, so upgrading is the only reliable mitigation.
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Apple Updates Everything, (Mon, Sep 14th)
Apple patched a record 261 vulnerabilities across iOS 27, macOS Golden Gate 27, watchOS 27, and other platforms, with none flagged as exploited.
Apple's annual OS update shipped iOS/iPadOS 27, macOS Golden Gate 27, tvOS 27, watchOS 27, and visionOS 27 plus bug-fix releases for the 26 and 15 branches, fixing a record 261 vulnerabilities. Notable issues include multiple kernel flaws allowing root privilege escalation (CVE-2026-43689, CVE-2026-43691, CVE-2026-43698, CVE-2026-43786), remote code execution in CUPS (CVE-2026-43692), kernel memory corruption via malicious NFS servers (CVE-2026-43686, CVE-2026-43687), and WebKit memory corruption from crafted web content (CVE-2026-43715). No vulnerabilities are labeled as actively exploited, and Apple does not assign per-CVE severities. Users report iOS 26.7 being downloaded when iOS 27 is intended, and tools like Little Snitch and BlockBlock need updates before upgrading to macOS 27.
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ZDI-26-584: dnsmasq DNSSEC NSEC/NSEC3 Type Bitmap Processing Infinite Loop Denial-of-Service Vulnerability
ZDI disclosed an unauthenticated infinite-loop denial-of-service flaw (CVE-2026-4890) in dnsmasq DNSSEC NSEC/NSEC3 bitmap processing.
The Zero Day Initiative published ZDI-26-584 describing an infinite loop in dnsmasq's processing of DNSSEC NSEC/NSEC3 type bitmaps. Remote unauthenticated attackers can trigger a denial-of-service condition on affected installations. ZDI assigned a CVSS score of 7.5 and the identifier CVE-2026-4890.
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GDCM <= 3.2.7: six memory-safety and denial-of-service vulnerabilities, no CVE
Six memory-safety and denial-of-service flaws disclosed in the GDCM DICOM parsing library, affecting versions through 3.2.7.
Researcher Abhinav Agarwal disclosed six vulnerabilities in GDCM (Grassroots DICOM), an open-source C++ library for parsing and processing DICOM files. All six were confirmed against GDCM 3.2.6 using AddressSanitizer and UndefinedBehaviorSanitizer, and source review found the vulnerable patterns through version 3.2.7 and the upstream master snapshot. Potential impacts include heap corruption, process-memory disclosure, stack exhaustion, and process termination in applications parsing untrusted DICOM files. No CVE identifiers have been assigned at the time of disclosure.
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Cisco Warns of Seven ClamAV Flaws, Two With Public PoCs
Cisco warns of seven ClamAV denial-of-service flaws in Secure Endpoint Connector, two with public PoCs; patches due in August.
Cisco warned that seven ClamAV denial-of-service vulnerabilities, tracked as CVE-2026-20337 through CVE-2026-20339 and CVE-2026-20345 through CVE-2026-20348, affect the Secure Endpoint Connector on Windows, macOS and Linux. Two flaws, CVE-2026-20337 (CVSS 7.5, out-of-bounds write) and CVE-2026-20338 (memory double-free), have public proof-of-concept code, but Cisco PSIRT reports no evidence of malicious exploitation. Fixes shipped in ClamAV 1.5.4, with Cisco patches due in August and no workaround available. Windows is rated high risk because ClamAV runs with elevated privileges there.
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TP-Link Tapo Camera Flaw Lets Attackers Gain Admin Access Without Password
Two flaws in TP-Link Tapo C200 cameras allow network-adjacent admin access without a password (CVE-2026-15315) or DoS (CVE-2026-15316); fixed in V5_1.4.6.
OPSWAT Unit 515 researchers discovered CVE-2026-15315, an authentication bypass in the Tapo C200's local HTTPS management interface on port 443, where an alternative verification path accepts a replayed device-generated value, letting unauthenticated network-adjacent attackers establish admin sessions. CVE-2026-15316 causes a denial-of-service crash in the camera's HTTPS service via oversized encrypted Wi-Fi credential data during onboarding. TP-Link confirmed both issues after the April 16, 2026 report and released firmware V5_1.4.6 on August 18, 2026. OPSWAT says additional potentially critical findings remain under coordinated disclosure.
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Apple Patches 200 Vulnerabilities With New iOS 27, macOS Golden Gate 27 Releases
Apple patched a record 200+ vulnerabilities in iOS 27 and macOS Golden Gate 27, including 20 kernel flaws; none exploited in the wild.
Apple's iOS 27 and iPadOS 27 releases fix roughly 126 security flaws, 20 of them in the kernel, while macOS Golden Gate 27 addresses 210 vulnerabilities, about 100 shared with the mobile release. macOS Tahoe 26.7 patches 153 unique CVEs, including 26 kernel defects that could cause memory corruption, privilege escalation, system termination, and information leaks. Notable fixes include CVE-2026-64752, a CoreMedia memory corruption flaw allowing iPhone compromise via a malicious image, and CVE-2022-3437, a heap buffer overflow in Heimdal Samba enabling denial-of-service. Apple states none of the patched flaws are known to be exploited in the wild.
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graphql-go/graphql <= 0.8.1: quadratic CPU-exhaustion DoS via OverlappingFieldsCanBeMergedRule
Unauthenticated quadratic CPU-exhaustion DoS disclosed in graphql-go/graphql up to v0.8.1 via OverlappingFieldsCanBeMergedRule; no fixed version exists.
Evgenios Gkritsis publicly disclosed an algorithmic-complexity denial-of-service flaw in github.com/graphql-go/graphql affecting all released versions up to and including v0.8.1. The defect is triggered via the OverlappingFieldsCanBeMergedRule validation, is unauthenticated and network-reachable, and causes quadratic CPU exhaustion. No fixed version exists; the disclosure was public because the project has no private security-reporting channel or SECURITY.md.
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Plex Urges Immediate Updates After Patching Multiple Undisclosed Security Flaws
Plex patched multiple undisclosed flaws in Media Server 1.43.3 and Desktop 1.115.0, urging all users to update immediately.
Plex released fixes in Plex Media Server 1.43.3 and Plex Desktop 1.115.0 for multiple undisclosed security flaws, with CVE identifiers requested and details not yet published. Censys data shows more than 360,000 devices expose the Plex Media Server web interface. Past Plex flaws saw real exploitation, including CVE-2020-5741 (CVSS 7.2), used to implant a keylogger on a LastPass employee's home computer during the 2022 breach, and CVE-2025-34158 (CVSS 8.5), an authentication bug patched in August 2025.
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