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CVE Record

CVE-2026-36228: Buffer Overflow vulnerability in Easy Chat Server 3.1 allows a remote attacker to obtain sensitive informat...

Buffer Overflow vulnerability in Easy Chat Server 3.1 allows a remote attacker to obtain sensitive information and execute arbitrary code via the chat message functionality

HighCVSS 7.3Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-36228 is a high-severity buffer overflow reported in Easy Chat Server 3.1. A remote, unauthenticated attacker could use chat message handling to expose limited sensitive information, alter data, or disrupt service, and the description also states arbitrary code execution is possible.

Executive priority

Treat as a near-term remediation item for any exposed Easy Chat Server 3.1 system. Prioritize discovery first because affected metadata is incomplete, then reduce exposure or upgrade according to vendor guidance.

Technical view

The CVE describes CWE-120 buffer overflow in Easy Chat Server 3.1 via chat message functionality. CVSS 3.1 is 7.3: network-accessible, low complexity, no privileges, no user interaction, unchanged scope, with low confidentiality, integrity, and availability impacts.

Likely exposure

Highest concern is any Easy Chat Server 3.1 instance reachable from the internet or untrusted networks. The CVE record lacks structured vendor, product, version, and CPE data, so asset discovery may require software inventory and service review.

Exploitation context

No CISA KEV listing is provided, and the supplied sources do not state active exploitation. The public GitHub reference suggests public technical information exists, but the source bundle does not establish real-world exploitation.

Researcher notes

Evidence is limited to the CVE description, CVSS vector, CWE-120 classification, and one GitHub reference. The affected block is unstructured as n/a, so confirm product identity independently before broad fleet conclusions.

Mitigation direction

  • Identify any Easy Chat Server 3.1 deployments.
  • Check vendor or project guidance for patches or supported upgrades.
  • Remove public exposure where business need is absent.
  • Restrict access to trusted networks with firewall controls.
  • Increase monitoring around chat service crashes and anomalous messages.

Validation and detection

  • Confirm installed product name and version on relevant hosts.
  • Determine whether the chat service is internet-facing.
  • Review CVE and referenced repository for vendor-specific indicators.
  • Check logs for crashes, unexpected restarts, or malformed chat traffic.
  • Document compensating controls until vendor guidance is confirmed.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-120: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-36228 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.3CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L3.93.4CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.3High
CVSS 3.1 vector shape for CVE-2026-36228Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-120 · source CWE mapping

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.