vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2023-38712

MEDIUM
6.5
CVSS Score
Published: August 25, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 06:11 AM UTC
1 product affected across 1 vendorLibreswan

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.8%

Description

An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the pluto daemon to crash and restart.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Libreswan· Libreswan
95%
3.0 ≤ v < 4.04.0 ≤ v < 4.12
Affected range stops below 4.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisory
Source: [email protected]
https://github.com/libreswan/libreswan/tags
Third Party Advisory
Source: [email protected]
https://libreswan.org/security/CVE-2023-38712/

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card