CVE-2026-0420 Missing TLS certificate validation in NETGEAR's ReadyCloud client app

An improper implementation of TLS certificate validation vulnerability found in NETGEAR's ReadyCloud client app which could allow an attacker to perform attacker-in-the-middle MiTM style attacks impacting the product's confidentiality. This vulnerability affects the listed NETGEAR models...

May 12, 2026—KB5089549 (OS Builds 26200.8457 and 26100.8457)

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June 9, 2026—KB5094123 (OS Build 17763.8880)

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June 9, 2026—KB5094125 (OS Build 26100.32995)

None None...

May 12, 2026—KB5087539(OS Build 26100.32860)

None None...

crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building

A flaw was found in the Go standard library packages crypto/x509 and crypto/tls. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being...

node-forge: Forge (node-forge): Certificate validation bypass allows unauthorized certificate issuance

A flaw was found in Forge also known as node-forge, a JavaScript implementation of Transport Layer Security TLS. The pki.verifyCertificateChain function does not properly enforce certificate validation rules. This oversight allows an intermediate certificate that lacks specific security extension...

Important: Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update

An update is now available for Red Hat Ansible Automation Platform 2.5 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building

A flaw was found in the Go standard library packages crypto/x509 and crypto/tls. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being...

CVE-2026-24349

A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 All versions, SIMATIC WinCC Unified PC Runtime V17 All versions, SIMATIC WinCC Unified PC Runtime V18 All versions, SIMATIC WinCC Unified PC Runtime V19 All versions, SIMATIC WinCC Unified PC Runtime V20 All versions,...

Improper Certificate Validation

The LDAP client is vulnerable to Improper Certificate Validation. The vulnerability is due to missing hostname verification during TLS server identity validation, where the LDAP client validates the certificate chain but does not verify that the certificate matches the intended LDAP server...

CVE-2026-6899

Check for certificate revocation only considers the first matching CRL and ignores other valid CRLs of the same CA in the CycloneCrypto cryptographic wrapper of S2OPC library. It might allow connection between an OPC UA client and server using a revoked certificate...

EUVD-2026-35382

A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 All versions, SIMATIC WinCC Unified PC Runtime V17 All versions, SIMATIC WinCC Unified PC Runtime V18 All versions, SIMATIC WinCC Unified PC Runtime V19 All versions, SIMATIC WinCC Unified PC Runtime V20 All versions,...

CVE-2026-24349

The CVE-2026-24349 entry affects SIMATIC WinCC Unified PC Runtime V16–V21 (all versions up to but not including V21 Update 2). The root cause is insufficient protection of key material in WinCC Certificate Manager, which could allow an attacker to extract sensitive information. All connected sour...

CVE-2026-24349

A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 All versions, SIMATIC WinCC Unified PC Runtime V17 All versions, SIMATIC WinCC Unified PC Runtime V18 All versions, SIMATIC WinCC Unified PC Runtime V19 All versions, SIMATIC WinCC Unified PC Runtime V20 All versions,...

CVE-2026-24349

A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 All versions, SIMATIC WinCC Unified PC Runtime V17 All versions, SIMATIC WinCC Unified PC Runtime V18 All versions, SIMATIC WinCC Unified PC Runtime V19 All versions, SIMATIC WinCC Unified PC Runtime V20 All versions,...

CVE-2026-6899

CVE-2026-6899 affects the CycloneCrypto wrapper in the S2OPC library. The check for certificate revocation only reviews the first matching CRL and ignores other valid CRLs for the same CA, potentially allowing a revoked certificate to establish a connection between an OPC UA client and server. No...

CVE-2026-6899 Improper Check for Certificate Revocation in S2OPC

Check for certificate revocation only considers the first matching CRL and ignores other valid CRLs of the same CA in the CycloneCrypto cryptographic wrapper of S2OPC library. It might allow connection between an OPC UA client and server using a revoked certificate...

EUVD-2026-35380

Check for certificate revocation only considers the first matching CRL and ignores other valid CRLs of the same CA in the CycloneCrypto cryptographic wrapper of S2OPC library. It might allow connection between an OPC UA client and server using a revoked certificate...

CVE-2026-6899 Improper Check for Certificate Revocation in S2OPC

Check for certificate revocation only considers the first matching CRL and ignores other valid CRLs of the same CA in the CycloneCrypto cryptographic wrapper of S2OPC library. It might allow connection between an OPC UA client and server using a revoked certificate...