Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80300.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-80300
Upstream
Published
2026-03-23T19:16:39Z
Modified
2026-08-30T05:26:50Z
Summary
CVE-2026-25075 affecting package strongswan for versions less than 5.9.14-9
Details

strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.

References

Affected packages

Azure Linux:3 / strongswan

Package

Name
strongswan
Purl
pkg:rpm/azure-linux/strongswan

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.9.14-9

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80300.json"