What is CVE-2025-57819?

CVE-2025-57819 is FreePBX Affected by Authentication Bypass Leading to SQL Injection and RCE. The supplied enrichment data classifies it as Injection mapped to CWE-89 SQL Injection; CWE-288 Authentication Bypass Using an Alternate Path.

Which versions are affected?

Affected product and version evidence is listed in the product table above. Current public advisories should be checked for exact version scope before patch targeting is finalized.

Is there active exploitation?

Yes: CISA KEV signal present. If exploitation is not confirmed from current sources, teams should document that status and continue monitoring KEV, vendor, and telemetry updates.

Is there a public exploit?

42 public PoC repositories reported; 4 marked weaponized in current dataset. Public exploit or PoC availability should raise triage priority, especially for exposed or business-critical systems.

How can defenders detect it?

Start with web/proxy/WAF logs, application logs, network IDS/IPS, database audit logs where available. Look for vulnerability-class behavior, product errors, suspicious authentication events, exploit probes, and abnormal process activity based only on evidence that applies to the affected product.

How should teams prioritize it?

Prioritize CVE-2025-57819 using CVSS 9.8, EPSS 88%, KEV status, public PoC status, and asset exposure. Internet-facing, privileged, or business-critical deployments should be handled first.

Are workarounds available?

The supplied mitigation guidance says to apply vendor patches and restrict external exposure until fixed. Fixed-version evidence is listed in the mitigation section above.

Which threat actors are linked publicly?

Publicly linked actor or ransomware signals in the supplied enrichment data: Void Rabisu (), RomCom (), Lucky Cat (), Cron (), Returned Libra (). Do not attribute exploitation to a threat actor unless the source evidence explicitly supports that linkage.

What should be done in the next 24 hours?

Identify exposed assets running affected vendor/product/version combinations. Treat as emergency remediation because CISA KEV status is present. Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class. Open remediation tickets with affected assets, owners, evidence status, and detection coverage so decisions are traceable.

CISA KEVcriticalInjectionpublic exploit

CVE-2025-57819

CVE-2025-57819 — FreePBX Affected by Authentication Bypass Leading to SQL Injection and RCE

Q: Is it in CISA KEV?

Yes. The supplied enrichment data lists CVE-2025-57819 in CISA KEV with required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.. KEV status should be monitored because it can change after initial disclosure or after exploitation becomes publicly confirmed.

FreePBX is an open-source web-based graphical user interface. FreePBX 15, 16, and 17 endpoints are vulnerable due to insufficiently sanitized user-supplied data allowing unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution. This issue has been patched in endpoint versions 15.0.66, 16.0.89, and 17.0.3.

Published Aug 28, 2025Updated Jun 17, 2026Sources: NVD, FreePBX (CNA), CISA, FIRST EPSS, SOCRadar CTI

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Confirmed

CISA KEV, listed Aug 29, 2025

EPSS

88%

ahead of 99.8% of scored CVEs

Affects

FreePBX

3 products listed

CVSS base

9.8

critical · 2 sources

CISA SSVC assessment

Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.

CISA

Exploitation

Active

none · proof-of-concept · active

Automatable

Yes

can an attacker script all four kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

The vendor's own words where we have them.

Upgrade endpoint to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Federal deadline Sep 19, 2025 — passed 360 days ago

First 24 hours

Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.

Identify exposed assets running affected vendor/product/version combinations.
Treat as emergency remediation because CISA KEV status is present.
Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.

Affected scope

Vendor, product and version as the advisories word them.

Vendor	Product	Versions	Status
FreePBX	endpoint	< 15.0.66	Vulnerable
FreePBX	endpoint	< 16.0.89	Vulnerable
FreePBX	endpoint	< 17.0.3	Vulnerable

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Availability

High

Confidentiality

High

Integrity

High

Scope

Unchanged

Attack Complexity

Low

Attack Vector

Network

Privileges Req

None

User Interaction

None

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Source
9.8	CVSS 3.1	critical	3.9	5.9	NVD
10	CVSS 4.0	critical	—	—	FreePBX (CNA)

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

What this weakness leads to

MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.

MITRE

CWE-288 · Authentication Bypass Using an Alternate Path or Channel

Bypass Protection Mechanism::

Mitigation: Funnel all access through a single choke point to simplify how users can access a resource. For every access, perform a check to determine if the user has permissions to access the resource.::

CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Read Application Data
Bypass Protection Mechanism
Modify Application Data

Mitigation: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using persistence layers such as Hibernate or Enterprise Java Beans, which can provide significant protection against SQL injection if used properly.

Weakness & attack patterns

CWE-89SQL Injection
CWE-288Authentication Bypass Using an Alternate Path

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

CAPEC-470 · Expanding Control over the Operating System from the DatabaseCAPEC-109 · Object Relational Mapping InjectionCAPEC-110 · SQL Injection through SOAP Parameter TamperingCAPEC-7 · Blind SQL InjectionCAPEC-108 · Command Line Execution through SQL InjectionCAPEC-66 · SQL Injection

T1083File and Directory Discovery
T1211Exploitation for Defensive Evasion
T1542.002Pre-OS Boot: Component Firmware

CISA KEV details

CISA lists a CVE here once it has evidence of exploitation against real targets.

CISAThat month →

Listed

Aug 29, 2025

Federal deadline

Sep 19, 2025

passed 360 days ago

Ransomware use

Unknown

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a date to argue against.

Public exploit

Capability, not use: code existing is a different claim from anyone running it.

Repositories

4 of the 5 sampled are weaponized

Exploit entries

Exploit-DB and CTI exploit indexes

Social mentions

Posts naming this CVE. Attention, not evidence of exploitation — it spikes on disclosure and decays whether or not anything is exploited.

35 more posts on this CVEShowing 5 of 40 · Who is discussing this CVE, and how loudlyUnlock free

Detection

Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.

Prioritize edge telemetry for network-reachable endpoint.
Monitor for scanner or exploit-pattern traffic after 42 public PoC repositories were reported.

web/proxy/WAF logsapplication logsnetwork IDS/IPSdatabase audit logs

Groups associated with this CVE

Groups reported in connection with this vulnerability. A reported association, not a confirmed observation of that group using it — and not scoped to any sector or campaign.

Void RabisuRomComLucky CatCronReturned Libra

1 more threat groups on this CVEShowing 5 of 6 · Attribution, campaigns and the malware each one runsUnlock free

Timeline

What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.

2026
Cve is exploited TeteREN/CVE-2025-57819-RCE
Aug 12, 2026 · SOCRadar CTI
Cve is exploited Neobee714/CVE-2025-57819-POC
Jul 20, 2026 · SOCRadar CTI
Cve is exploited Its1Zero/cve-2025-57819-exploit
Jul 2, 2026 · SOCRadar CTI
Cve is exploited JazzTheRabbit/FreePBX-SQLi-RCE
Jun 27, 2026 · SOCRadar CTI
Cve is exploited ozcanpng/CVE-2025-57819-FreePBX-RCE2Root
Jun 19, 2026 · SOCRadar CTI
Added · CVSS 3.1 9.8 (AV:N)
Jun 17, 2026 · NVD
Cve is exploited b4sh2/CVE-2025-57819-poc
Jun 7, 2026 · SOCRadar CTI
Cve is exploited Jeanback1/CVE-2025-57819-exploit
Jun 7, 2026 · SOCRadar CTI
2025
Added to CISA KEV catalog
Aug 29, 2025 · CISA
Initial · CVE published
Aug 28, 2025 · NVD

Source activity

Readings a source repeats on a schedule, counted rather than listed.

13×Github ReposJun 6, 2026 – Aug 1, 2026 · SOCRadar CTI
13×SVRS was changedJun 7, 2026 – Jul 20, 2026 · SOCRadar CTI
1×Tweets · 1 time tweeted.Jun 10, 2026 · SOCRadar CTI

References

5 on the record

community.freepbx.org/t/security-advisory-please-lock-down-your-administrator-access/107203
Issue Tracking, Vendor Advisory, NIST, Mitre
github.com/FreePBX/security-reporting/security/advisories/GHSA-m42g-xg4c-5f3h
Mitigation, Vendor Advisory, NIST, Mitre
github.com/watchtowrlabs/watchTowr-vs-FreePBX-CVE-2025-57819
Exploit, Third Party Advisory, NIST
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-57819
US Government Resource
nvd.nist.gov/vuln/detail/CVE-2025-57819
Vendor Advisory

Coverage

18 stories from the feeds we poll

13 more reports on this CVEShowing 5 of 18 · Vendor research and security press coverageUnlock free

Elsewhere on this site

FreePBXevery CVE for this vendor
August 2025what else CISA listed
Injectionsame class
CWE-89other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record1

What should defenders know first?

CVE-2025-57819 is FreePBX Affected by Authentication Bypass Leading to SQL Injection and RCE, a critical vulnerability affecting endpoint from FreePBX. The current evidence lists it in CISA KEV, and the exploit status is: Yes: CISA KEV signal present. Public exploit evidence is: 42 public PoC repositories reported; 4 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 9.8 describes technical severity, while EPSS 88% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.