critical Known exploitedREV. 01

CVE-2025-57819Sangoma FreePBX — unsanitised input opens the administrator

FreePBX 15, 16 and 17 do not sanitise user input on some endpoints, which lets an unauthenticated attacker reach the administrator interface, manipulate the database and run code on the telephony server.

YOUR NEXT MOVE

Apply the patched endpoint versions now and lock the administrator interface to trusted addresses; exploit code is public, so audit trunks and call records.

Read the risk

THE VITAL STATS
CVSS score
9.8/ 10
CVSS v3.1
EPSS probability
85%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2025-08-28
Added to KEV
2025-08-29
Exploit published
Yes
Confidence
high
Kill chain
initial access
MITRE ATT&CK
T1190
Severity
critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attacker needsNetwork access to the FreePBX endpoints; no credentials needed.

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2025-57819 · CRDS 0.1 · Issued 2026-09-24