MSRC_CVE-2026-25075
Vulnerability from csaf_microsoft - Published: 2026-03-02 00:00 - Updated: 2026-03-27 01:42Summary
strongSwan 4.5.0 < 6.0.5 EAP-TTLS AVP Parsing Integer Underflow
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
7.5 (High)
Vendor Fix
5.9.14-9:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade
https://learn.microsoft.com/en-us/azure/azure-lin…
References
| URL | Category | |
|---|---|---|
{
"document": {
"category": "csaf_vex",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2026-25075 strongSwan 4.5.0 \u003c 6.0.5 EAP-TTLS AVP Parsing Integer Underflow - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-25075.json"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "strongSwan 4.5.0 \u003c 6.0.5 EAP-TTLS AVP Parsing Integer Underflow",
"tracking": {
"current_release_date": "2026-03-27T01:42:01.000Z",
"generator": {
"date": "2026-03-27T07:08:42.916Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2026-25075",
"initial_release_date": "2026-03-02T00:00:00.000Z",
"revision_history": [
{
"date": "2026-03-25T01:01:26.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
},
{
"date": "2026-03-25T14:37:07.000Z",
"legacy_version": "2",
"number": "2",
"summary": "Information published."
},
{
"date": "2026-03-26T01:01:36.000Z",
"legacy_version": "3",
"number": "3",
"summary": "Information published."
},
{
"date": "2026-03-27T01:42:01.000Z",
"legacy_version": "4",
"number": "4",
"summary": "Information published."
}
],
"status": "final",
"version": "4"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "3.0",
"product": {
"name": "Azure Linux 3.0",
"product_id": "17084"
}
},
{
"category": "product_version",
"name": "2.0",
"product": {
"name": "CBL Mariner 2.0",
"product_id": "17086"
}
}
],
"category": "product_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cazl3 strongswan 5.9.14-8",
"product": {
"name": "\u003cazl3 strongswan 5.9.14-8",
"product_id": "2"
}
},
{
"category": "product_version",
"name": "azl3 strongswan 5.9.14-8",
"product": {
"name": "azl3 strongswan 5.9.14-8",
"product_id": "20896"
}
}
],
"category": "product_name",
"name": "strongswan"
},
{
"category": "product_name",
"name": "cbl2 strongswan 5.9.10-4",
"product": {
"name": "cbl2 strongswan 5.9.10-4",
"product_id": "1"
}
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003cazl3 strongswan 5.9.14-8 as a component of Azure Linux 3.0",
"product_id": "17084-2"
},
"product_reference": "2",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "azl3 strongswan 5.9.14-8 as a component of Azure Linux 3.0",
"product_id": "20896-17084"
},
"product_reference": "20896",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cbl2 strongswan 5.9.10-4 as a component of CBL Mariner 2.0",
"product_id": "17086-1"
},
"product_reference": "1",
"relates_to_product_reference": "17086"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-25075",
"cwe": {
"id": "CWE-191",
"name": "Integer Underflow (Wrap or Wraparound)"
},
"flags": [
{
"label": "component_not_present",
"product_ids": [
"17086-1"
]
}
],
"notes": [
{
"category": "general",
"text": "VulnCheck",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"20896-17084"
],
"known_affected": [
"17084-2"
],
"known_not_affected": [
"17086-1"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2026-25075 strongSwan 4.5.0 \u003c 6.0.5 EAP-TTLS AVP Parsing Integer Underflow - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-25075.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2026-03-25T01:01:26.000Z",
"details": "5.9.14-9:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17084-2"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"environmentalsScore": 0.0,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"temporalScore": 7.5,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"17084-2"
]
}
],
"title": "strongSwan 4.5.0 \u003c 6.0.5 EAP-TTLS AVP Parsing Integer Underflow"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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