Seppmail

27 CVEs across 4 Seppmail products. Browse Seppmail vulnerabilities, severities, and proof-of-concept exploits.

Seppmail products with known CVEs

ProductCVEs
Secure Email Gateway22
Secure Email Gateway14
Seppmail12
Seppmail Secure Email Gateway & Seppmail Cloud1
Seppmail CVEs — newest first
CVESeverityScorePublishedSummary
CVE-2026-95922026-07-17SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session in the GINA web portal, as the sess…
CVE-2026-29144Medium5.32026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge security tags using Unicode lookalike character…
CVE-2026-29143Critical9.12026-04-02SEPPmail 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-2026-29142Medium5.32026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to forge a GINA-encrypted email.
CVE-2026-29141Medium5.32026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to bypass subject sanitization and forge tags such as [signed OK].
CVE-2026-29140Medium5.32026-04-02SEPPmail 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-2026-29139Critical9.82026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows account takeover by abusing GINA account initialization to reset a victim account password.
CVE-2026-29138High7.52026-04-02SEPPmail 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-2026-29137Medium5.32026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a long subject.
CVE-2026-29136Medium6.12026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates.
CVE-2026-29135High7.52026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to craft a password-tag that bypasses subject sanitization.
CVE-2026-29134High7.52026-04-02SEPPmail Secure Email Gateway before version 15.0.3 allows an external user to modify GINA webdomain metadata and bypass per-domain restrictions.
CVE-2026-29133Critical9.12026-04-02SEPPmail 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-2026-29132High7.52026-04-02SEPPmail 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-2026-29131High7.52026-04-02SEPPmail 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-2026-2743Critical9.82026-03-05Arbitrary File Write via Path Traversal upload to Remote Code Execution in SeppMail User Web Interface. The affected feature is the large file transfer (LFT)…
CVE-2026-2748Medium5.32026-03-04SEPPmail Secure Email Gateway before version 15.0.1 improperly validates S/MIME certificates issued for email addresses containing whitespaces, allowing signat…
CVE-2026-2747High7.52026-03-04SEPPmail Secure Email Gateway before version 15.0.1 decrypts inline PGP messages without isolating them from surrounding unencrypted content, allowing exposure…
CVE-2026-2746Medium5.32026-03-04SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged ema…
CVE-2026-27445Medium5.32026-03-04SEPPmail Secure Email Gateway before version 15.0.1 does not properly verify that a PGP signature was generated by the expected key, allowing signature spoofin…
CVE-2026-27444High7.52026-03-04SEPPmail Secure Email Gateway before version 15.0.1 incorrectly interprets email addresses in the email headers, causing an interpretation conflict with other…
CVE-2026-27443High7.52026-03-04SEPPmail 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-2026-27442High7.52026-03-04The 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-2026-27441Critical9.82026-03-04SEPPmail Secure Email Gateway before version 15.0.1 insufficiently neutralizes the PDF encryption password, allowing OS command execution.
CVE-2022-41871Medium6.02025-04-28SEPPmail through 12.1.17 allows command injection within the Admin Portal. An authenticated attacker is able to execute arbitrary code in the context of the us…
CVE-2021-31740Medium6.12022-11-30SEPPMail's web frontend, user input is not embedded correctly in the web page and therefore leads to cross-site scripting vulnerabilities (XSS).
CVE-2021-31739Medium6.12022-11-18The SEPPmail solution is vulnerable to a Cross-Site Scripting vulnerability (XSS), because user input is not correctly encoded in HTML attributes when returned…