CVE-2018-25221Disclosure(echatserver / easy_chat_server)

LOWCVSS 9.3 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

EChat Server 3.1 contains a buffer overflow vulnerability in the chat.ghp endpoint that allows remote attackers to execute arbitrary code by supplying an oversized username parameter. Attackers can send a GET request to chat.ghp with a malicious username value containing shellcode and ROP gadgets to achieve code execution in the application context.

echatserver CVEs Back to dashboard

1.5/ 10 priority

Sources & remediation

Exploit / PoC references

https://www.exploit-db.com/exploits/44155

Vendor / third-party advisories

https://www.vulncheck.com/advisories/echat-server-buffer-overflow-via-chat-ghp-username-parameter

Weakness type (CWE)

CWE-787

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

easy_chat_server

Threat summary

Public PoC is present in monitored signal
4 mentions across 2 observed days
Momentum state: stable

What's happening

PoC mentioned or linked in 1 signal
Technical details provided in 3 signals
Disclosure: 4 classified signals
Peaked 1d ago at 3 mentions (2026-03-28); latest day: 1
4 total mentions across 2 days

Affected systems

Vendors

echatserver

Products

easy_chat_server

Deep dive

Activity timeline4 mentions / 2d

Signal classification1 categories

Disclosure

4100.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-28	3	Disclosure3
2026-03-29	1	Disclosure1

Full discourse4 posts

CVEarity@CVEarity196d
Disclosure
⚡ New CVE Alert: CVE-2018-25221 📊 Severity: 9.8 🚨 Risk Level: Critical 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-25221 #CVE-2018-25221 #CVE #Critical #CyberSecurity #InfoSec https://t.co/NpQy5IVXm9
Post summary
The tweet publishes a basic alert for CVE‑2018‑25221, noting its 9.8 severity, critical risk level, and a reference to the NVD entry, but provides no detailed technical or mitigation information.
0000025
123 followersView on X
CVE@CVEnew196d
Disclosure
CVE-2018-25221 EChat Server 3.1 contains a buffer overflow vulnerability in the chat.ghp endpoint that allows remote attackers to execute arbitrary code by supplying an oversized us… https://www.cve.org/CVERecord?id=CVE-2018-25221
Post summary
CVE-2018-25221 is disclosed as a buffer overflow in EChat Server 3.1 enabling remote code execution via an oversized input to the chat.ghp endpoint, with no PoC, exploit, or patch details provided.
0000042
56.9K followersView on X
CVEFind.com@CveFindCom197d
Disclosure
[CVE-2018-25221: CRITICAL] Critical vulnerability alert! EChat Server 3.1 has a buffer overflow flaw in chat.ghp endpoint. Attackers can execute code remotely via oversized username parameter. #CyberSecurity#cve,CVE-2018-25221,#cybersecurity https://cvefind.com/CVE-2018-25221
Post summary
The text announces a critical buffer overflow in EChat Server 3.1 that allows remote code execution via an oversized username, but it offers no PoC, exploit code, patch, or evidence of active exploitation.
0000023
617 followersView on X
0day Signal@0dayPublishing197d
Disclosure
🚨 CVE-2018-25221: EChat Server 3.1 Buffer Overflow... GET request to chat.ghp with oversized username = instant RCE via stack smashing - classic textbook buffer overflow wit... https://zerodaysignal.com/vulnerability/CVE-2018-25221 #netsec #vulnerability #CVE #sysadmin #zeroday
Post summary
The tweet announces CVE-2018-25221, a buffer overflow in EChat Server 3.1 that permits remote code execution via an oversized username in a GET request. No patch, exploit code, or evidence of active exploitation is provided, and the post focuses on the vulnerability’s disclosure.
0000046
194 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	echatserver	easy_chat_server	-	-	-

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Back to dashboard echatserver CVEs easy_chat_server vulnerabilities

What researchers are saying

CVE-2018-25221

CVEarity@CVEarityDisclosure

The tweet publishes a basic alert for CVE‑2018‑25221, noting its 9.8 severity, critical risk level, and a reference to the NVD entry, but provides no detailed technical or mitigation information.

CVE@CVEnewDisclosure

CVE-2018-25221 is disclosed as a buffer overflow in EChat Server 3.1 enabling remote code execution via an oversized input to the chat.ghp endpoint, with no PoC, exploit, or patch details provided.

CVEFind.com@CveFindComDisclosure

The text announces a critical buffer overflow in EChat Server 3.1 that allows remote code execution via an oversized username, but it offers no PoC, exploit code, patch, or evidence of active exploitation.

0day Signal@0dayPublishingDisclosure

The tweet announces CVE-2018-25221, a buffer overflow in EChat Server 3.1 that permits remote code execution via an oversized username in a GET request. No patch, exploit code, or evidence of active exploitation is provided, and the post focuses on the vulnerability’s disclosure.