CVE-2026-69558: Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker t

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HIGH 8.6REMOTEWATCHLISTMITIGATE

CVE-2026-69558 is a high-severity flaw (CVSS 8.6) affecting partner center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker to disclose information over a network.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-639
Published	2026-08-20
Last modified	2026-10-18

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-20 22:18 UTCPublished CVE record published
2026-10-18 20:10 UTCUpdated Record last modified

microsoft partner center MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy partner-center || rpm -q partner-center || partner-center --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · gcl · FIXED · 2.7.1-12.fc46 · FEDORA-2026-ff383a759b · source

sudo dnf upgrade --advisory=FEDORA-2026-ff383a759b

Fedora ELN · mozjs140 · FIXED · 140.13.0-5.eln159 · FEDORA-2026-f7ed0026e0 · source

sudo dnf upgrade --advisory=FEDORA-2026-f7ed0026e0

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-69558?

partner center: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-69558 being exploited?

CVE-2026-69558 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-69558 affect?

CVE-2026-69558 affects partner center. Severity is high (CVSS 8.6). Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker to disclose information over a network.

How urgent is CVE-2026-69558?

Priority 56/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

CVE-2026-24303 CRITICAL 9.6 MITIGATE Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privile
CVE-2026-34327 HIGH 8.2 MITIGATE Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthor
CVE-2026-96207 CRITICAL 10.0 MITIGATE Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privile

References

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