Seppmail Secure Email Gateway
22 CVEs affecting Seppmail Secure Email Gateway. Latest disclosed: 2026-04-02. Critical: 4, High: 9.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2026-29139 | Critical | 9.8 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows account takeover by abusing GINA account initialization to reset a victim account password. |
CVE-2026-27441 | Critical | 9.8 | 2026-03-04 | SEPPmail Secure Email Gateway before version 15.0.1 insufficiently neutralizes the PDF encryption password, allowing OS command execution. |
CVE-2026-29143 | Critical | 9.1 | 2026-04-02 | 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… |
CVE-2026-29133 | Critical | 9.1 | 2026-04-02 | 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. |
CVE-2026-29138 | High | 7.5 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to claim another user's PGP signature as their own. |
CVE-2026-29135 | High | 7.5 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to craft a password-tag that bypasses subject sanitization. |
CVE-2026-29134 | High | 7.5 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an external user to modify GINA webdomain metadata and bypass per-domain restrictions. |
CVE-2026-29132 | High | 7.5 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker with access to a victim's GINA account to bypass a second-password check and read protec… |
CVE-2026-29131 | High | 7.5 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to read the contents of emails encrypted for other… |
CVE-2026-2747 | High | 7.5 | 2026-03-04 | SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure… |
CVE-2026-27444 | High | 7.5 | 2026-03-04 | SEPPmail Secure Email Gateway before version 15.0.1 incorrectly interprets email addresses in the email headers, causing an interpretation conflict with other… |
CVE-2026-27443 | High | 7.5 | 2026-03-04 | 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… |
CVE-2026-27442 | High | 7.5 | 2026-03-04 | The GINA web interface in SEPPmail Secure Email Gateway before version 15.0.1 does not properly check attachment filenames in GINA-encrypted emails, allowing a… |
CVE-2026-29136 | Medium | 6.1 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates. |
CVE-2026-29144 | Medium | 5.3 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge security tags using Unicode lookalike character… |
CVE-2026-29142 | Medium | 5.3 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to forge a GINA-encrypted email. |
CVE-2026-29141 | Medium | 5.3 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags such as [signed OK]. |
CVE-2026-29140 | Medium | 5.3 | 2026-04-02 | 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 b… |
CVE-2026-29137 | Medium | 5.3 | 2026-04-02 | SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a long subject. |
CVE-2026-2748 | Medium | 5.3 | 2026-03-04 | SEPPmail Secure Email Gateway before version 15.0.1 improperly validates S/MIME certificates issued for email addresses containing whitespaces, allowing signat… |