SEPPmail Secure Email Gateway up to 15.1.0 password recovery

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9$0-$5k1.99

Summaryinfo

A vulnerability classified as very critical has been found in SEPPmail Secure Email Gateway up to 15.1.0. This issue affects some unknown processing. This manipulation causes password recovery. This vulnerability is tracked as CVE-2026-114421. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in SEPPmail Secure Email Gateway up to 15.1.0. It has been declared as very critical. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a password recovery vulnerability. The CWE definition for the vulnerability is CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

SEPPmail Secure Email Gateway before 15.1.1 permits password recovery for a created but unregistered GINA account whose initial password is empty without adequately verifying ownership. A remote unauthenticated attacker who identifies such an account can set a new password, authenticate as that account, and prevent the intended recipient from using it until recovery.

The advisory is shared at docs.seppmail.com. This vulnerability is known as CVE-2026-114421 since 10/21/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/04/2026). MITRE ATT&CK project uses the attack technique T1552 for this issue.

Upgrading to version 15.1.1 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.3
VulDB Temp Score: 7.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Password recovery
CWE: CWE-640
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Secure Email Gateway 15.1.1

Timelineinfo

10/21/2026 CVE reserved
11/04/2026 +14 days Advisory disclosed
11/04/2026 +0 days VulDB entry created
11/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: docs.seppmail.com
Status: Confirmed

CNA: NCSC.ch
CVE: CVE-2026-114421 (🔒)

GCVE (CVE): GCVE-0-2026-114421
GCVE (VulDB): GCVE-100-431017

Entryinfo

Created: 11/04/2026 10:06
Changes: 11/04/2026 10:06 (65)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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