CVE-2026-80443

Insecure TLS Certificate Validation in API Tool Runner in HAVELSAN's Sef - AI Chatbot Platform

HIGH

7.4

CVSS Score

Published: October 2, 2026 at 09:04 AM UTC

Updated: October 2, 2026 at 03:17 PM UTC

1 product affected across 1 vendorSef

Using Sef - AI Chatbot Platform by HAVELSAN Inc.?

Get instant alerts when new vulnerabilities affect Sef - AI Chatbot Platform - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.4

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Improper certificate validation vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Adversary in the Middle (AiTM). This issue affects Sef - AI Chatbot Platform: before 2.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Sef · Havelsan

60%

v < 2.1

Affected range stops below 2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

US Government Resource

Source: cverecord

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1241

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHTR-CERT

Attack Vector: NETWORK
Complexity: HIGH
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-295

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card