CVE-2026-87701

Status: AnalyzedCritical (9.6)—

Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Base score: 9.6

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.79%
Percentile among all scored CVEs: 55
Score date: 10/4/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement75 %
Primary impactT1548 Abuse Elevation Control Mechanismprivilege escalation70 %
Secondary impactT1098.003 Additional Cloud Rolespersistence · privilege escalation65 %

Inyección CWE-74 en servicio remoto (Azure Cosmos DB) con PR:L, permite escalada de privilegios (C:H/I:H) a atacante autenticado. T1548 por elevación, T1098.003 por potencial control de cuentas.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management User Account Management Update Software Vulnerability Scanning Threat Intelligence Program Restrict File and Directory Permissions

Affected technologies (1)

Microsoft — Azure Cosmos DB

CWEs

CWE-74

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87701

Raw JSON (NVD)

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