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CVE-2024-49369

Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.

CVSS 3.1 · 9.8 Critical EPSS 2.9% KEV · Not listed
Vendors
CVE-2016-9064

Mozilla: Addons update must verify IDs match between current and new versions (MFSA 2016-89, MFSA 2016-90)

Add-on updates failed to verify that the add-on ID inside the signed package matched the ID of the add-on being updated. An attacker who could perform a man-in-the-middle attack on the user's connection to the update server and defeat the certificate pinning protection could provide a malicious signed add-on instead of a valid update. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.

CVSS 3.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2025-64434

KubeVirt Improper TLS Certificate Management Handling Allows API Identity Spoofing

KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.5.3 and 1.6.1, due to the peer verification logic in virt-handler (via verifyPeerCert), an attacker who compromises a virt-handler instance, could exploit these shared credentials to impersonate virt-api and execute privileged operations against other virt-handler instances potentially compromising the integrity and availability of the VM managed by it. This vulnerability is fixed in 1.5.3 and 1.6.1.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2025-64432

KubeVirt Affected by an Authentication Bypass in Kubernetes Aggregation Layer

KubeVirt is a virtual machine management add-on for Kubernetes. Versions 1.5.3 and below, and 1.6.0 contained a flawed implementation of the Kubernetes aggregation layer's authentication flow which could enable bypass of RBAC controls. It was discovered that the virt-api component fails to correctly authenticate the client when receiving API requests over mTLS. In particular, it fails to validate the CN (Common Name) field in the received client TLS certificates against the set of allowed values defined in the extension-apiserver-authentication configmap. Failre to validate certain fields in the client TLS certificate may allow an attacker to bypass existing RBAC controls by directly communicating with the aggregated API server, impersonating the Kubernetes API server and its aggregator component. This issue is fixed in versions 1.5.3 and 1.6.1.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2025-34199

Vasion Print (formerly PrinterLogic) Insecure SSL Verification Allows Man-in-the-Middle Attacks

Vasion Print (formerly PrinterLogic) Virtual Appliance Host versions prior to 22.0.1049 and Application versions prior to 20.0.2786 (VA and SaaS deployments) contain insecure defaults and code patterns that disable TLS/SSL certificate verification for communications to printers and internal microservices. In multiple places, the application sets libcurl/PHP transport options such that CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are effectively disabled, and environment variables (for example API_*_VERIFYSSL=false) are used to turn off verification for gateway and microservice endpoints. As a result, the client accepts TLS connections without validating server certificates (and, in some cases, uses clear-text HTTP), permitting on-path attackers to perform man-in-the-middle (MitM) attacks. An attacker able to intercept network traffic between the product and printers or microservices can eavesdrop on and modify sensitive data (including print jobs, configuration, and authentication tokens), inject malicious payloads, or disrupt service. This vulnerability has been identified by the vendor as: V-2024-024 — Insecure Communication to Printers & Microservices.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
CVE-2024-8285

Kroxylicious: missing upstream kafka tls hostname verification

A flaw was found in Kroxylicious. When establishing the connection with the upstream Kafka server using a TLS secured connection, Kroxylicious fails to properly verify the server's hostname, resulting in an insecure connection. For a successful attack to be performed, the attacker needs to perform a Man-in-the-Middle attack or compromise any external systems, such as DNS or network routing configuration. This issue is considered a high complexity attack, with additional high privileges required, as the attack would need access to the Kroxylicious configuration or a peer system. The result of a successful attack impacts both data integrity and confidentiality.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2023-4586

Hotrod-client: hot rod client does not enable hostname validation when using tls that lead to a mitm attack

A vulnerability was found in the Hot Rod client. This security issue occurs as the Hot Rod client does not enable hostname validation when using TLS, possibly resulting in a man-in-the-middle (MITM) attack.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
CVE-2025-12765

pgAdmin 4: LDAP authentication flow vulnerable to TLS certificate verification bypass.

pgAdmin <= 9.9  is affected by a vulnerability in the LDAP authentication mechanism allows bypassing TLS certificate verification.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2025-34235

Vasion Print (formerly PrinterLogic) Weak SSL/TLS Certificate Validation RCE

Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 25.1.102 and Application prior to version 25.1.1413 (Windows client deployments) contain a registry key that can be enabled by administrators, causing the client to skip SSL/TLS certificate validation. An attacker who can intercept HTTPS traffic can then inject malicious driver DLLs, resulting in remote code execution with SYSTEM privileges; a local attacker can achieve local privilege escalation via a junction‑point DLL injection. This vulnerability has been confirmed to be remediated, but it is unclear as to when the patch was introduced.

CVSS 4.0 · 9.5 Critical EPSS < 1% KEV · Not listed
Vendors
CVE-2024-10444

Improper certificate validation vulnerability in the LDAP utilities in Synology DiskStation Manager (DSM) before 7.1.1-42962-8, 7.2.1-69057-7 and 7.2.2-72806-3 allows man-in-the-middle attackers to hijack the authentication of administrators via unspecified vectors.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2024-10445

Improper certificate validation vulnerability in the update functionality in Synology BeeStation OS (BSM) before 1.1-65374 and Synology DiskStation Manager (DSM) before 6.2.4-25556-8, 7.1.1-42962-7, 7.2-64570-4, 7.2.1-69057-6 and 7.2.2-72806-1 allow remote attackers to write limited files via unspecified vectors.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2024-2048

Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates

Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when configured with a non-CA certificate as trusted certificate. In this configuration, an attacker may be able to craft a malicious certificate that could be used to bypass authentication. Fixed in Vault 1.15.5 and 1.14.10.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
CVE-2024-6219

Mark Laing discovered in LXD's PKI mode, until version 5.21.1, that a restricted certificate could be added to the trust store with its restrictions not honoured.

CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Vendors
Products
Lxd
CVE-2023-41991

A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.

CVSS 3.1 · 5.5 Medium EPSS 13.4% KEV · Listed
Vendors
CVE-2024-35140

IBM Security Verify Access privilege escalation

IBM Security Verify Access Docker 10.0.0 through 10.0.6 could allow a local user to escalate their privileges due to improper certificate validation. IBM X-Force ID: 292416.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Ibm
CVE-2024-31872

IBM Security Verify Access Appliance missing certificate validation

IBM Security Verify Access Appliance 10.0.0 through 10.0.7 could allow a malicious actor to conduct a man in the middle attack when deploying Open Source scripts due to missing certificate validation. IBM X-Force ID: 287316.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Ibm
CVE-2024-31871

IBM Security Verify Access Appliance improper certificate validation

IBM Security Verify Access Appliance 10.0.0 through 10.0.7 could allow a malicious actor to conduct a man in the middle attack when deploying Python scripts due to improper certificate validation. IBM X-Force ID: 287306.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Ibm
CVE-2024-25053

IBM Cognos Analytics improper certificate validation

IBM Cognos Analytics 11.2.0, 11.2.1, 11.2.2, 11.2.3, 11.2.4, 12.0.0, 12.0.1, and 12.0.2 is vulnerable to improper certificate validation when using the IBM Planning Analytics Data Source Connection. This could allow an attacker to spoof a trusted entity by interfering in the communication path between IBM Planning Analytics server and IBM Cognos Analytics server. IBM X-Force ID: 283364.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
CVE-2023-43017

IBM Security Verify Access man in the middle

IBM Security Verify Access 10.0.0.0 through 10.0.6.1 could allow a privileged user to install a configuration file that could allow remote access. IBM X-Force ID: 266155.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
CVE-2023-32330

IBM Security Verify Access man in the middle

IBM Security Verify Access 10.0.0.0 through 10.0.6.1 uses insecure calls that could allow an attacker on the network to take control of the server. IBM X-Force ID: 254977.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Ibm