Dashboard / CVE-2026-114426

CVE-2026-114426

HIGH
MEDIUM Priority: 0.03 BB Relevance: 77/100
Published: 2026-11-04 Modified: 2026-11-09 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: None
VI: None
VA: High

Description

SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
SEPPmail AG SEPPmail Secure Email Gateway (SEG) 0 < 15.1.1
SEPPmail AG SEPPmail Secure Email Gateway (SEG) 0 < 15.1.1

References & Advisories (1)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.32%
Raw Score 0.003220
Percentile 25.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00322
2026-11-12
0.00322
2026-11-10
0.00322
2026-11-09
0.00322
2026-11-08
0.00322
2026-11-07
0.00322
2026-11-06
0.00322
2026-11-05
0.00322
2026-11-04
0.00322

Intelligence Sources

mitre ref →
nvd ref →

External Links