PT-2026-29694

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to upload PGP keys with UIDs that do not match their email address...

PT-2026-29697

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...

SEPPmail Secure Email Gateway 安全漏洞

SEPPmail Secure Email Gateway is an email security gateway developed by the German company SEPPmail. Versions of SEPPmail Secure Email Gateway prior to version 15.0.3 contained security vulnerabilities. These vulnerabilities allowed attackers to bypass the second password check, potentially leadi...

PT-2026-29706

SEPPmail Secure Email Gateway before version 15.0.3 does not properly authenticate the inner message of S/MIME-encrypted MIME entities, allowing an attacker to control trusted headers...

CVE-2026-27444

SEPPmail Secure Email Gateway before version 15.0.1 incorrectly interprets email addresses in the email headers, causing an interpretation conflict with other mail infrastructure that allows an attacker to fake the source of the email or decrypt it...

CVE-2026-2747

SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure of sensitive information to an unauthorized actor...

EUVD-2026-9383

SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails...

CVE-2026-2747

SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure of sensitive information to an unauthorized actor...

CVE-2026-27443

SEPPmail Secure Email Gateway before version 15.0.1 does not properly sanitize the headers from S/MIME protected MIME entities, allowing an attacker to control trusted headers...

CVE-2026-2748

CVE-2026-2748 affects SEPPmail Secure Email Gateway prior to version 15.0.1. The issue is improper validation of S/MIME certificates issued for email addresses containing whitespace, which enables signature spoofing. Impact is limited to confidentiality/integrity as described, with no availabilit...

CVE-2026-27442

The SEPPmail Secure Email Gateway’s GINA web interface (pre-15.0.1) has a vulnerability where attachment filenames in GINA-encrypted emails are not properly validated, allowing an attacker to access files stored on the gateway. Affected product: SEPPmail Secure Email Gateway, component: GINA web ...

CVE-2026-27443 S/MIME Decryption Tag Sanitization Bypass

SEPPmail Secure Email Gateway before version 15.0.1 does not properly sanitize the headers from S/MIME protected MIME entities, allowing an attacker to control trusted headers...

SEPPmail Secure Email Gateway 安全漏洞

SEPPmail Secure Email Gateway is an email security gateway developed by the German company SEPPmail. Versions of SEPPmail Secure Email Gateway prior to version 15.0.1 contained security vulnerabilities, which were due to insufficient PDF encryption and password encoding. These vulnerabilities cou...

PT-2026-22894

SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure of sensitive information to an unauthorized actor...

SEPPmail Secure Email Gateway 安全漏洞

SEPPmail Secure Email Gateway is an email security gateway developed by the German company SEPPmail. Versions of SEPPmail Secure Email Gateway prior to version 15.0.1 contained security vulnerabilities. These vulnerabilities stemmed from improper verification of whether the PGP signature was...

PT-2026-22889

SEPPmail Secure Email Gateway before version 15.0.1 does not properly sanitize the headers from S/MIME protected MIME entities, allowing an attacker to control trusted headers...

PT-2026-22891

SEPPmail Secure Email Gateway before version 15.0.1 does not properly verify that a PGP signature was generated by the expected key, allowing signature spoofing...

PT-2026-22893

SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails...

SEPPmail Secure Email Gateway 安全漏洞

SEPPmail Secure Email Gateway is an email security gateway developed by the German company SEPPmail. Versions of SEPPmail Secure Email Gateway prior to version 15.0.1 contained security vulnerabilities. These vulnerabilities stemmed from incorrect transmission of PGP signature verification result...

Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways

Cisco on Thursday released security updates for a maximum-severity security flaw impacting Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager, nearly a month after the company disclosed that it had been exploited as a zero-day by a China-nexus advanced...