Exploitation evidence
Known exploited · CISA KEV listed
Added 2024-03-26. Ransomware campaign use: Known.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: 2024-04-16. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Microsoft / Microsoft SharePoint Enterprise Server 2016
Default status: Not specified
- affected: 16.0.0 to < 16.0.5395.1000 (custom)
Microsoft / Microsoft SharePoint Server 2019
Default status: Not specified
- affected: 16.0.0 to < 16.0.10398.20000 (custom)
Microsoft / Microsoft SharePoint Server Subscription Edition
Default status: Not specified
- affected: 16.0.0 to < 16.0.16130.20420 (custom)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.84974,
"percentile": 0.99717
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.84974,
"percentile": 0.99715
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.84974,
"percentile": 0.99714
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.84974,
"percentile": 0.99714
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.84974,
"percentile": 0.99713
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.84974,
"percentile": 0.99713
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.84974,
"percentile": 0.99713
}05 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
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"version": "2.0.3"
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}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.84974,
"percentile": 0.99713
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.84974,
"percentile": 0.99712
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.84974,
"percentile": 0.99712
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2023-24955",
"cwes": [
"CWE-94"
],
"dateAdded": "2024-03-26",
"dueDate": "2024-04-16",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24955; https://nvd.nist.gov/vuln/detail/CVE-2023-24955",
"product": "SharePoint Server",
"requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "Microsoft SharePoint Server contains a code injection vulnerability that allows an authenticated attacker with Site Owner privileges to execute code remotely.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft SharePoint Server Code Injection Vulnerability"
}