major vulnerability· requires attention

Affects Microsoft Azure Database for PostgreSQL — a widely used cloud DB service; network privilege escalation can cause large-scale data breaches and operational impact.

Cloud

CVE-2026-85878

9.9

Critical

EPSS 0.78%Patch available

Authorization flaw in Azure Database for PostgreSQL allows privilege escalation.

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Patch available see the advisory in the references

likelihood

EPSS 0.78%top 45% of scored CVEs

Published 17 Sept 2026Analysed here 18 Sept 2026CVSS scored by the publisher (CNA)

common questions

Is CVE-2026-85878 being exploited?

Not confirmed. CVE-2026-85878 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.78% probability of exploitation in the next 30 days.

How severe is CVE-2026-85878?

CVE-2026-85878 is rated Critical with a CVSS score of 9.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-85878?

Yes. A fix has been recorded for CVE-2026-85878. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-85878 affect?

CVE-2026-85878 affects Azure Database for PostgreSQL, Azure-managed PostgreSQL. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-85878?

Apply Microsoft's security update for Azure Database for PostgreSQL immediately and audit DB roles.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

Azure Database for PostgreSQLAzure-managed PostgreSQL

impact

Authenticated network attacker can elevate to DB admin/owner, execute arbitrary SQL, create users, access/modify data, and enable lateral movement.

action required

Immediate action required

cisa ssvc

exploitation: none
automatable: no
technical impact: total

Assessed by CISA 18 Sept 2026 (SSVC 2.0.3).

timeline

17 Sept 2026Published
18 Sept 2026CISA SSVC assessment: exploitation none · same day later
18 Sept 2026Analysed by vulneraibility.com · 1 day later
31 Oct 2026CVE record last updated · 43 days later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

1 reference in the CVE record: 1 patch

Patchmsrc.microsoft.com /update-guide/vulnerability/CVE-2026-85878

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
CISA Vulnrichment (ADP): SSVC decision points
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

get alerted

Track only the vulnerabilities that affect your infrastructure.

start for free