MSRC_CVE-2025-69277
Vulnerability from csaf_microsoft - Published: 2025-12-02 00:00 - Updated: 2026-01-03 01:01Summary
libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the main cryptographic group.
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.
{
"document": {
"category": "csaf_vex",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
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"lang": "en-US",
"notes": [
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"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"
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"references": [
{
"category": "self",
"summary": "CVE-2025-69277 libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren\u0027t in the main cryptographic group. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-69277.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": "libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren\u0027t in the main cryptographic group.",
"tracking": {
"current_release_date": "2026-01-03T01:01:58.000Z",
"generator": {
"date": "2026-01-06T20:17:42.361Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
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},
"id": "msrc_CVE-2025-69277",
"initial_release_date": "2025-12-02T00:00:00.000Z",
"revision_history": [
{
"date": "2026-01-03T01:01:58.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
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],
"status": "final",
"version": "1"
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},
"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": "azl3 libsodium 1.0.19-1",
"product": {
"name": "azl3 libsodium 1.0.19-1",
"product_id": "2"
}
},
{
"category": "product_version_range",
"name": "cbl2 libsodium 1.0.18-6",
"product": {
"name": "cbl2 libsodium 1.0.18-6",
"product_id": "1"
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}
],
"category": "product_name",
"name": "libsodium"
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"category": "vendor",
"name": "Microsoft"
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"relationships": [
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"category": "default_component_of",
"full_product_name": {
"name": "azl3 libsodium 1.0.19-1 as a component of Azure Linux 3.0",
"product_id": "17084-2"
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"product_reference": "2",
"relates_to_product_reference": "17084"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cbl2 libsodium 1.0.18-6 as a component of CBL Mariner 2.0",
"product_id": "17086-1"
},
"product_reference": "1",
"relates_to_product_reference": "17086"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-69277",
"cwe": {
"id": "CWE-184",
"name": "Incomplete List of Disallowed Inputs"
},
"notes": [
{
"category": "general",
"text": "mitre",
"title": "Assigning CNA"
}
],
"product_status": {
"known_affected": [
"17084-2",
"17086-1"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2025-69277 libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren\u0027t in the main cryptographic group. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-69277.json"
}
],
"remediations": [
{
"category": "none_available",
"date": "2026-01-03T01:01:58.000Z",
"details": "There is no fix available for this vulnerability as of now",
"product_ids": [
"17084-2"
]
},
{
"category": "none_available",
"date": "2026-01-03T01:01:58.000Z",
"details": "There is no fix available for this vulnerability as of now",
"product_ids": [
"17086-1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"environmentalsScore": 0.0,
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"temporalScore": 4.5,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"17084-2",
"17086-1"
]
}
],
"title": "libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren\u0027t in the main cryptographic group."
}
]
}
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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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