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Threat intelligence API
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Live feed
Recipes
Free feeds
CLI & agents
The data
Incident records
Dark web
Validated IOCs
Vulnerabilities
Entity graph
For teams
For service providers
Use cases
About ThreatCluster
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ReDoc
Examples on GitHub
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Back
Heartbleed
Vulnerability
Threat entity extracted from intelligence sources
Entities
›
vulnerability
›
Heartbleed
Frequency
8
occurrences
First Seen
December 28, 2025
Last Seen
August 27, 2026
API
Overview
Recent Events
Profile
Profile
MITRE ATT&CK
1 / 2
Exploited By
ARES
Crypto-Locker
Medusa
Associated Malware
FinStealer
Hydra
Zeus
Tools Used
Nmap
CIC-BenignGenerator
CICFlowMeter
CICFlowMeter-V3
Hashcat
Hashpump
Heartleech
HOIC
Related CVEs
CVE-2026-47729
MITRE Techniques
T1041 - Exfiltration Over C2 Channel
T1046 - Network Service Discovery
T1110 - Brute Force
T1566 - Phishing
Affected Platforms
Windows
MongoDB
Linux
Chromium-based Browsers
FTP
HTTP
Regions
Germany
Sectors Affected
Finance
Healthcare
Legal Services
Technology
-
REC
Recon
No techniques detected
-
RD
Resource Dev
No techniques detected
1
IA
Initial Access
T1566 - Phishing
-
EX
Execution
No techniques detected
-
PE
Persistence
No techniques detected
-
PE
Priv Esc
No techniques detected
-
DE
Defense Evasion
No techniques detected
1
CA
Cred Access
T1110 - Brute Force
-
DI
Discovery
No techniques detected
-
LM
Lateral Mov
No techniques detected
-
CO
Collection
No techniques detected
-
C2
C2
No techniques detected
1
EX
Exfil
T1041 - Exfiltration Over C2 Channel
-
IM
Impact
No techniques detected
4
techniques detected across
3
tactics
Related Clusters (6)
Critical Squid Proxy Vulnerability 'Squidbleed' Exposes User Data
Jun 22
·
10 sources
71
AI-Driven Vulnerability Discovery Outpaces Remediation Efforts
Aug 27
·
8 sources
56
MongoBleed Vulnerability Exposes MongoDB Data to Attackers
Jan 10
·
2 sources
53
Old Vulnerabilities Persist Amid AI Advancements
Mar 25
·
2 sources
52
Development of Advanced Intrusion Detection Datasets for Cybersecurity
Apr 12
·
3 sources
34
Over 70,000 MongoDB Servers Exposed to MongoBleed Vulnerability
Dec 30
·
6 sources
33
Prev
1 / 2
Next
Related Articles (8)
AI is finding vulnerabilities faster. Who is funding the people expected to fix them?
Business-Reporter
·
Aug 27
Mythos discovers 'Squidbleed,' a memory leak that's gone undetected since Clinton era
Theregister
·
Jun 23
29-Year-Old ‘Squidbleed’ Vulnerability Discovered With the Aid of Claude Mythos Preview
Cybersecuritynews
·
Jun 22
Ids 2018
www.unb.ca
·
May 31
Ids 2017
www.unb.ca
·
Apr 24
Old Vulnerabilities, New AI Era, Amplified Risk
Trendmicro
·
Mar 25
MongoBleed Vulnerability Allows Attackers to Read Data From MongoDB's Heap Memory
Infoq
·
Jan 10
87,000+ MongoDB Instances Vulnerable to MongoBleed Flaw Exposed Online
Cybersecuritynews
·
Dec 28
Prev
1 / 2
Next
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ARES
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DoS
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