CVE-2026-24301

highpriority · track · 40EPSS 0.011 · 66 %ileexploit · PoCRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.11% (66th) EPSS

CVSS 7.5 · high

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

fstec_bdu · msrc_csaf · nvd

EPSS · scored 2026-10-27

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Psecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-77USCWE-77USCWE-77US

exploits (1)

Public proof-of-concept and weaponised exploit code.

CSOAI-ORG/memory-poisoning-axis🧪 Measures memory-poisoning / prompt-injection deterministically — anchored to CVE-2026-24301 (CoSnitch), Inspect scorer, signed receipts. Measurement, not certification.PoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

Microsoft Corp Copilot Weball versionsfstec_bduRU
Microsoft Copilot Weball versionsfixedmsrc_csafUS
microsoft copilotall versionsnvdUScpe:2.3:a:microsoft:copilot:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

msrc_CVE-2026-24301Microsoft Copilot Information Disclosure Vulnerability2026-08-18csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16225 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu msrc_csaf nvd NVD CVE.org MITRE

published 2026-08-18modified 2026-10-22

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24301Vendor Advisory

scry

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