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Fencer Vulns
medium 5.3

CVE-2026-80337 json

Unauthorized Cross-Chatbot Tool Invocation in HAVELSAN's Sef - AI Chatbot Platform

published 2026-10-02 37 d ago modified 2026-10-02 37 d ago also EUVD-2026-91324

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

Missing Authorization vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Accessing Functionality Not Properly Constrained by ACLs.

This issue affects Sef - AI Chatbot Platform: before 2.1. NOTE: The vendor was contacted and it was learned that the product is not supported.

Patch / fix

  • HAVELSAN Inc. Sef - AI Chatbot Platform 2.1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
37 d ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • HAVELSAN Inc. Sef - AI Chatbot Platform

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.