ghsa-xcrc-8vqv-vc8r
Vulnerability from github
Published
2025-07-20 03:30
Modified
2025-07-22 03:30
Severity ?
Details
Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.
{
"affected": [],
"aliases": [
"CVE-2025-53770"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-20T01:15:30Z",
"severity": "CRITICAL"
},
"details": "Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network.\nMicrosoft is aware that an exploit for CVE-2025-53770 exists in the wild.\nMicrosoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.",
"id": "GHSA-xcrc-8vqv-vc8r",
"modified": "2025-07-22T03:30:34Z",
"published": "2025-07-20T03:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53770"
},
{
"type": "WEB",
"url": "https://arstechnica.com/security/2025/07/sharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-across-the-globe"
},
{
"type": "WEB",
"url": "https://github.com/kaizensecurity/CVE-2025-53770"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/blog/2025/07/customer-guidance-for-sharepoint-vulnerability-cve-2025-53770"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770"
},
{
"type": "WEB",
"url": "https://news.ycombinator.com/item?id=44629710"
},
{
"type": "WEB",
"url": "https://research.eye.security/sharepoint-under-siege"
},
{
"type": "WEB",
"url": "https://therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally"
},
{
"type": "WEB",
"url": "https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770"
},
{
"type": "WEB",
"url": "https://www.darkreading.com/remote-workforce/microsoft-rushes-emergency-fix-exploited-sharepoint-toolshell-flaw"
},
{
"type": "WEB",
"url": "https://www.forbes.com/sites/daveywinder/2025/07/20/microsoft-confirms-ongoing-mass-sharepoint-attack---no-patch-available"
},
{
"type": "WEB",
"url": "https://x.com/Shadowserver/status/1946900837306868163"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.