CVE-2026-65660
validatedZero produced an exploit or a check.check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+45dkevAttacks confirmed in the real world.+44d
Microsoft SharePoint >= 16.0.0, < 16.0.5565.1001; >= 16.0.0, < 16.0.10417.20198; >= 16.0.0, < 16.0.19725.20522
fixed in 16.0.5565.1001, 16.0.10417.20198, 16.0.19725.20522
CWE-94 Improper Control of Generation of Code ('Code Injection')
ETK-2026-9, permanent identifier
+51dTTV
29mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable description
Microsoft SharePoint Server 2016, 2019, and Subscription Edition are affected by an improper code-generation control issue. An authorized attacker may perform spoofing over a network; the evidence does not provide additional preconditions.
mitigation
Update to SharePoint Enterprise Server 2016 16.0.5565.1001, SharePoint Server 2019 16.0.10417.20198, or SharePoint Server Subscription Edition 16.0.19725.20522, as applicable.
fixed in 16.0.5565.1001, 16.0.10417.20198, 16.0.19725.20522
check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
yes, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
2.1%81st percentile
agent run time
29m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-08-11 17:04Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+45d
Δ to kevAttacks confirmed in the real world.
+44d
outcome
Contextual check: a technique exists and was validated, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-08-11 17:04Zcve.org record for CVE-2026-65660
- 2026-09-24 00:00Z
- 2026-09-25cisa_kev: trigger signal, started the run
- 2026-09-25 00:00ZEUVD known exploited (ENISA)
- 2026-09-25 00:00ZCISA Known Exploited Vulnerabilities catalog
- 2026-09-29 20:42ZShadowForge-Cyber/CVE-2026-65660-Poc
- 2026-10-02 00:27ZSharePoint RCE and MikroTik RouterOS Flaws Actively Exploited in the Wild
this entry in the feed
GET /api/v1/feed/CVE-2026-65660
{ "etk_id": "ETK-2026-9", "cve_id": "CVE-2026-65660", "display_id": "CVE-2026-65660", "ghsa_id": null, "euvd_id": "EUVD-2026-56431", "status": "published", "anchor_state": "anchored", "title": "Authorized code injection in Microsoft SharePoint", "summary": "Microsoft SharePoint Server 2016, 2019, and Subscription Edition are affected by an improper code-generation control issue. An authorized attacker may perform spoofing over a network; the evidence does not provide additional preconditions.", "mitigation": "Update to SharePoint Enterprise Server 2016 16.0.5565.1001, SharePoint Server 2019 16.0.10417.20198, or SharePoint Server Subscription Edition 16.0.19725.20522, as applicable.", "vendor": "Microsoft", "product": "SharePoint", "affected": [ { "affected_notes": [], "affected_ranges": [ ">= 16.0.0, < 16.0.5565.1001" ], "ecosystem": null, "fixed_versions": [ "16.0.5565.1001" ], "package_name": "Microsoft SharePoint Enterprise Server 2016", "purl": null }, { "affected_notes": [], "affected_ranges": [ ">= 16.0.0, < 16.0.10417.20198" ], "ecosystem": null, "fixed_versions": [ "16.0.10417.20198" ], "package_name": "Microsoft SharePoint Server 2019", "purl": null }, { "affected_notes": [], "affected_ranges": [ ">= 16.0.0, < 16.0.19725.20522" ], "ecosystem": null, "fixed_versions": [ "16.0.19725.20522" ], "package_name": "Microsoft SharePoint Server Subscription Edition", "purl": null } ], "cwes": [ 94 ], "cvss_score": 8.8, "cvss_src": "nvd", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "epss_score": 0.021, "epss_percentile": 0.8145, "epss_asof": "2026-10-20", "automation": "contextual", "check": true, "check_confidence_basis": "assessed", "exploit": false, "pipeline_minutes": 28.9282187, "t0_at": "2026-08-11T17:04:55.666000+00:00", "signals": { "check": { "at": "2026-10-02T01:40:14.720418+00:00", "days": 51.35785942613426, "is_lower_bound": false, "measured_at": "2026-08-11T17:04:55.666000+00:00", "url": null }, "kev": { "at": "2026-09-24T00:00:00+00:00", "days": 44, "is_lower_bound": false, "measured_at": "2026-08-11T17:04:55.666000+00:00", "precision": "day", "url": "https://vulncheck.com/cve/CVE-2026-65660" }, "public_poc": { "at": "2026-09-25T20:27:27+00:00", "days": 45.14064043981482, "is_lower_bound": false, "measured_at": "2026-08-11T17:04:55.666000+00:00", "url": "https://github.com/ShadowForge-Cyber/CVE-2026-65660-Poc" }, "trigger_signal": { "at": "2026-09-25T00:00:00+00:00", "days": 44.288244606481484, "is_lower_bound": false, "measured_at": "2026-08-11T17:04:55.666000+00:00", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-65660" } } }
published 2026-09-29 20:19Z
last change 2026-10-21 04:45Z
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