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CVE-2023-45648

Apache Tomcat: Trailer header parsing too lenient

Published: Oct 10, 2023Updated: Aug 7, 2025 Sources: CVE List NVD GHSA BDU csafCWE-20
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
5.8%
Top 7.8%
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

SINEC NMS before V3.0 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC NMS and recommends to update to the latest version.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
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:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-20NVD-CWE-Other

Affected Products

Apache TomcatApache Software Foundation
On-premWeb App
Networking Infrastructure / load-balancer-proxy
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Jboss FuseRed Hat Inc.
On-premWeb App
DevTools & CI / build-test-tools
Jboss Web ServerRed Hat Inc.
On-premWeb App
Web & CMS Plugins
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 23 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
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-784301.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-784301.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-228-06.json
raw.githubusercontent.com
and 27 more references View all →

Timeline

Published
Oct 10, 2023
Last Updated
Aug 7, 2025

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