CVE-2026-29140
SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encry
CVSS
5.3
Medio
EPSS
0.1%
p2
KEV
—
Exploit Today
1
0-100
Publicado: 2 abr 2026 · Última mod.: 26 oct 2026 · CWE-295
0.1%EPSS · 30 días0.2%
2026-10-052026-11-02
SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to cause attacker-controlled certificates to be used for future encryption to a victim by adding the certificates to S/MIME signatures.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-1157147.4 ALT—
———Improper Certificate Validation (CWE-295) in the operating system certificate bundle shipped in the Docker images of APM Server; Auditbeat, Filebeat, Heartbeat, Metricbeat and Packetbeat; Elastic Agent, including Fleet Server and Cloudbeat; Logstash, for TLS connections that use the operating system certificate bundle; Elastic connectors; Universal Profiling (host agent, collector and symbolizer); and Elastic Maps Server. This certificate bundle, a dependency of these products (Dependency on Vulnerable Third-Party Component, CWE-1395), could allow an attacker to intercept or modify TLS-protected traffic via Signature Spoofing by Key Theft (CAPEC-474). The certificate bundle includes root certificate authorities that signed eight eMudhra intermediate certificate authorities whose private keys are compromised. Anyone with these keys can issue a certificate for any host name that these products accept as trusted. Exploitation requires an attacker in a network position between the product and the remote party, who presents a certificate issued with one of the compromised keys.6hCVE-2026-1214526.5 MED—
———bbs-go through 4.4.6 contains an improper certificate validation vulnerability that allows network-positioned attackers to intercept SMTP traffic because sendEmail() sets InsecureSkipVerify to true. Attackers can present any certificate to capture SMTP PLAIN auth credentials and read or modify outgoing password-reset and verification emails.7hCVE-2026-1213927.4 ALT—
———FreeRDP before 3.32.2 contains an improper certificate validation vulnerability in tls_verify_certificate() that accepts Common Name fallback despite non-matching SAN entries and matches IP literals against DNS strings. Man-in-the-middle attackers holding a certificate from a client-trusted CA can bypass server identity checks to intercept RDP sessions, including keystrokes, clipboard, and screen content.8hCVE-2026-918976.4 MED—
——0Dell Alienware Command Center (AWCC), versions prior to 6.14.54.0, contain an Improper Certificate Validation vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Arbitrary Code Execution and Denial of Service.7hCVE-2026-1202505.3 MED1.5%
——0OpenAlgo 1.0.0.29 before 2.0.3.1 contains an improper certificate validation vulnerability in utils/email_utils.py and utils/email_debug.py that disables TLS hostname and certificate checks for STARTTLS and SMTPS. Network-positioned attackers can present a forged certificate to intercept SMTP credentials and all later mail, including password-reset links.1dCVE-2026-1181477.4 ALT49.3%
——15Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.3d