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CVE-2025-43857

Published: Apr 28, 2025Updated: Nov 21, 2025 Sources: CVE List NVD GHSA BDUCWE-400
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.4%
Top 69.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

net-imap rubygem vulnerable to possible DoS by memory exhaustion

CVSS Vector Breakdown

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

Weaknesses

CWE-400CWE-405CWE-770CWE-789

Affected Products

net-imapRubyGemsOSS Libraries
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Red Hat 3scale API Management PlatformRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / api-gateway
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
rubygemspackage-ecosystemOSS Libraries
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
and 5 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

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/ruby/net-imap/security/advisories/GHSA-j3g3-5qv5-52mj
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-43857
nvd.nist.gov
https://github.com/ruby/net-imap/pull/442
github.com
and 18 more references View all →

Timeline

Published
Apr 28, 2025
Last Updated
Nov 21, 2025

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