CVE-2026-33389 Disabled and non-configurable certificate/host key validation in Smart Polling in Guardian/CMC before 26.3.0 and Arc before v2.7.0

An improper certificate/host key validation vulnerability was discovered in the Smart Polling functionality, which established encrypted connections to target devices without validating the remote host's identity, and no option was provided to enable it. A man-in-the-middle attacker positioned...

CVE-2026-33389

An improper certificate/host key validation vulnerability exists in the Smart Polling functionality of Nozomi Networks Guardian/CMC (before 26.3.0 ) and Nozomi Networks Arc (before v2.7.0 ). Encrypted connections to polled devices were established without validating the remote host's identity, an...

EUVD-2026-72787

An improper certificate/host key validation vulnerability was discovered in the Smart Polling functionality, which established encrypted connections to target devices without validating the remote host's identity, and no option was provided to enable it. A man-in-the-middle attacker positioned...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

Important: Red Hat Security Advisory: ignition security update

An update for ignition is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. 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...

python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees

A flaw was found in python-cryptography. This vulnerability arises from incorrect handling of wildcard Domain Name System DNS names during certificate validation. Specifically, the verifier may accept a certificate with a broad wildcard DNS name e.g., .example.com even when a more restrictive nam...

python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees

A flaw was found in python-cryptography. This vulnerability arises from incorrect handling of wildcard Domain Name System DNS names during certificate validation. Specifically, the verifier may accept a certificate with a broad wildcard DNS name e.g., .example.com even when a more restrictive nam...

ZTNA Portal Improper Certificate Validation

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PT-2026-87183

New security alarm: Fortinet’s Agentless ZTNA has a certificate‐validation flaw CVE-2026-84393 letting attackers perform MITM on FortiOS and FortiProxy. Versions 7.6.1-7.6.6 are vulnerable; upgrade to 7.6.7 or later. This unauthenticated risk puts exposed portals at serious risk—patch now if you...

CVE-2026-80125

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

CVE-2026-79975

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to server-side request forger...

CVE-2026-79639

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

CVE-2026-79639

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

EUVD-2026-72523

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

CVE-2026-79639

Dell Secure Connect Gateway (SCG) 5.0 is affected by an Improper Certificate Validation vulnerability in both the Appliance (versions prior to 5.36.00.16 ) and Application (versions prior to 5.36.00.00 ). An unauthenticated attacker with adjacent network access could exploit this flaw to gain una...

CVE-2026-80125

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

EUVD-2026-72493

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

CVE-2026-80125

Dell Secure Connect Gateway (SCG) 5.0 versions prior to 5.36.00.16 (Appliance) and 5.36.00.00 (Application) are affected by an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote network access could potentially exploit this flaw to gain unauthorized access , re...

CVE-2026-79642

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access...

CVE-2026-79691

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to protection mechanism...