AI description
CVE-2025-64328 identifies a command injection vulnerability within the FreePBX Endpoint Manager module. Specifically, the flaw resides in the `check_ssh_connect()` function of the Filestore component. This post-authentication vulnerability allows an authenticated attacker to execute arbitrary shell commands as the `asterisk` user on the affected system. This vulnerability impacts FreePBX Endpoint Manager versions 17.0.2.36 and above, prior to version 17.0.3. Reports indicate that a financially motivated hacker group, INJ3CTOR3, has actively exploited CVE-2025-64328 since early December 2025 to deploy a persistent webshell known as "EncystPHP," enabling them to gain administrative control over compromised VoIP systems.
- Description
- FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. In versions 17.0.2.36 and above before 17.0.3, the filestore module within the Administrative interface is vulnerable to a post-authentication command injection by an authenticated known user via the testconnection -> check_ssh_connect() function. An attacker can leverage this vulnerability to obtain remote access to the system as an asterisk user. This issue is fixed in version 17.0.3.
- Source
- security-advisories@github.com
- NVD status
- Awaiting Analysis
CVSS 4.0
- Type
- Secondary
- Base score
- 8.6
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
- security-advisories@github.com
- CWE-78
Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.
- Hype score
5
๐จ CVE-2025-64328 (CVSS 8.6): FreePBX Administration GUI is Vulnerable to Authenticated Command Injection FreePBX is vulnerable to authenticated command injection in the Endpoint Managerโs filestore module via `testconnection โ check_ssh_connect()`, allowing attackers to h
@zoomeye_team
2 Feb 2026
2338 Impressions
12 Retweets
31 Likes
14 Bookmarks
0 Replies
0 Quotes
FreePBXใฎ่ๅผฑๆงCVE-2025-64328ใใ่จญ็ฝฎใใใใฆใงใใทใงใซEncystPHPใซใคใใฆใใใฉใผใใฃใใใ็คพๅ ฑๅใใใใซใผ้ๅฃINJ3CTOR3ใซใใๆปๆๆดปๅใจ่ฆใใใใ https://t.co/j8Vtnf0EIn
@__kokumoto
2 Feb 2026
762 Impressions
0 Retweets
4 Likes
3 Bookmarks
1 Reply
0 Quotes
INJ3CTOR3 hackers target FreePBX with EncystPHP web shell via CVE-2025-64328. Malware uses cron jobs for persistence. Patch immediately. #EncystPHP #FreePBX #CyberSecurity #VoIP #InfoSec #Malware #CVE202564328 #INJ3CTOR3 https://t.co/0TghcJvgSp
@the_yellow_fall
2 Feb 2026
197 Impressions
1 Retweet
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Alert: Critical #FreePBX vulnerability (CVE-2025-64328) exploited by INJ3CTOR3 group to deploy EncystPHP webshell, granting full system control. Patch immediately! #Security #VoIP Link: https://t.co/M8IFmgbN4y #Cybersecurity #Hacking #Exploit #Webshell #System #Patch #Update http
@dailytechonx
30 Jan 2026
40 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
FortiGuard Labs uncovered EncystPHP, a Base64-encoded PHP web shell exploiting FreePBX CVE-2025-64328, enabling root access, SSH backdoors, and persistence through cron jobs in a campaign linked to INJ3CTOR3. #EncystPHP #VoIPHacking #India https://t.co/VwgwVG40kA
@TweetThreatNews
30 Jan 2026
108 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
๐จ Just in: Our team has identified #EncystPHP, a persistent FreePBX web shell exploiting CVE-2025-64328 to enable long-term administrative compromise. This activity aligns with INJ3CTOR3 campaigns. Learn why unpatched PBX systems remain prime targets. ๐ Read the blog: http
@FortiGuardLabs
29 Jan 2026
244 Impressions
2 Retweets
4 Likes
0 Bookmarks
0 Replies
0 Quotes
FortiGuard Labs analyses EncystPHP, a weaponized web shell delivering remote command execution, persistence and further web shell deployment. It spreads by exploiting FreePBX vulnerability CVE-2025-64328 and is linked to the INJ3CTOR3 actor. https://t.co/Fx2VaLog7o https://t.co/9
@virusbtn
29 Jan 2026
4471 Impressions
8 Retweets
28 Likes
16 Bookmarks
0 Replies
4 Quotes
๐ข ๐๐ง๐ฏ๐๐ข๐ฅ๐ข๐ง๐ ๐ญ๐ก๐ ๐๐๐๐ฉ๐จ๐ง๐ข๐ณ๐๐ ๐๐๐ ๐๐ก๐๐ฅ๐ฅ ๐๐ง๐๐ฒ๐ฌ๐ญ๐๐๐ โข EncystPHP is a web shell with remote command execution, persistence, and web shell deployment capabilities.
@PurpleOps_io
28 Jan 2026
29 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
CVE-2025-64328 Command Injection in FreePBX Endpoint Manager Filestore Module 17.0.2.36 https://t.co/7o5Iuclyx9
@VulmonFeeds
7 Nov 2025
48 Impressions
0 Retweets
1 Like
0 Bookmarks
0 Replies
0 Quotes
CVE-2025-64328 FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. In versions 17.0.2.36 and above before 17.0.3, the filestore module within tโฆ https://t.co/Q5X4T6Shnq
@CVEnew
7 Nov 2025
263 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes