CVE-2025-48927Known exploitationPublic exploitNetwork attack vector

Unauthenticated memory disclosure via exposed heap dump

Published May 28, 2025 · Updated Feb 26, 2026

Information disclosure in TeleMessage through 2025-05-05 allows remote attackers to read server memory through an exposed heap dump. The archive server exposes Spring Boot Actuator's /heapdump endpoint without authentication, causing a request to return a live Java heap snapshot. Internet access alone exposes credentials, plaintext chats, encryption keys, and other data present in process memory.

CVSS severity5.3
Medium
EPSS probability11.10%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in TeleMessage through 2025-05-05 allows remote attackers to read server memory through an exposed heap dump. The archive server exposes Spring Boot Actuator's /heapdump endpoint without authentication, causing a request to return a live Java heap snapshot. Internet access alone exposes credentials, plaintext chats, encryption keys, and other data present in process memory.

The record

CVE
CVE-2025-48927
Published
May 28, 2025
Updated
Feb 26, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1188, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 1, 2025Exploitation reportedTeleMessage archive-server compromise
  2. May 28, 2025CVE publishedPublication date reported by the CVE source.
  3. Jul 1, 2025Exploitation reportedCISA Known Exploited Vulnerabilities listing
  4. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3MITRE CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-1188Initialization of a Resource with an Insecure Default
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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