CVE Tools
Sign in

CVE-2021-28165

In Eclipse Jetty 7.2.2 to 9.4.38, 10.0.0.alpha0 to 10.0.1, and 11.0.0.alpha0 to 11.0.1, CPU usage can reach 100% upon receiving a large invalid TLS frame.

Published: Apr 1, 2021Updated: Aug 27, 2025 Sources: CVE List NVD GHSA BDU csafCWE-400
NVD MITRE
7.5CVSSHIGH
EPSS Score
53.9%
Top 1.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

Successful exploitation of these vulnerabilities could allow an attacker to gain access to the database, which could impact system availability and data integrity or cause a denial-of-service condition.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400CWE-551CWE-755

Affected Products

Oracle Communications Services GatekeeperOracle Corp.
On-prem
Databases / relational
Oracle Communications Element ManagerOracle Corp.
On-prem
Databases / relational
Autovue for Agile Product Lifecycle ManagementOracle Corp.
On-prem
Databases / relational
Communications Cloud Native Core PolicyOracle Corp.
On-prem
Databases / relational
JettyEclipse FoundationOSS Libraries
oracle corp.commercialUSDatabasesaka oracle
eclipse foundationoss-projectDEOSS Libraries
and 30 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

http://www.openwall.com/lists/oss-security/2021/04/20/3
openwall.com
https://safe-surf.ru/upload/VULN/VULN-20211206.4.pdf
safe-surf.ru
https://www.ibm.com/support/pages/node/6614725
ibm.com
and 333 more references View all →

Timeline

Published
Apr 1, 2021
Last Updated
Aug 27, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-28165 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows