CVE-2025-25005 (GCVE-0-2025-25005)
Vulnerability from cvelistv5 – Published: 2025-08-12 17:09 – Updated: 2026-02-13 18:54
VLAI
EPSS
VEX
Title
Microsoft Exchange Server Tampering Vulnerability
Summary
Improper input validation in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-12 19:07 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 |
Affected:
15.01.0.0 , < 15.01.2507.058
(custom)
|
guessed | |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 |
Affected:
15.02.0.0 , < 15.02.1544.033
(custom)
|
guessed | |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 |
Affected:
15.02.0.0 , < 15.02.1748.036
(custom)
|
guessed | |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM |
Affected:
15.02.0.0 , < 15.02.2562.020
(custom)
|
guessed |
Date Public
2025-08-12 07:00
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"lessThan": "15.02.2562.020",
"status": "affected",
"version": "15.02.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:*",
"versionEndExcluding": "15.02.1544.033",
"versionStartIncluding": "15.02.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:*",
"versionEndExcluding": "15.01.2507.058",
"versionStartIncluding": "15.01.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:*",
"versionEndExcluding": "15.02.1748.036",
"versionStartIncluding": "15.02.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*",
"versionEndExcluding": "15.02.2562.020",
"versionStartIncluding": "15.02.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2025-08-12T07:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Improper input validation in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20: Improper Input Validation",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-13T18:54:09.870Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Exchange Server Tampering Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-25005"
}
],
"title": "Microsoft Exchange Server Tampering Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2025-25005",
"datePublished": "2025-08-12T17:09:52.756Z",
"dateReserved": "2025-01-30T15:14:20.994Z",
"dateUpdated": "2026-02-13T18:54:09.870Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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