VulnSocial

CVE-2026-55006Patch(microsoft / exchange_server)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft exchange_server systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-1220

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • exchange_server
  • exchange_server_subscription_edition

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
exchange_serverexchange_server_subscription_edition

2 versions affected across 2 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-14: 1Patch / Workaround · 2026-07-14: 1Technical Details · 2026-07-14: 107-14
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    Patch

    🪟 Exchange Server’s latest privilege bug turns “low-privileged user” into “full admin” way too quickly. Patch CVE-2026-55006 now—because inbox access shouldn’t come with a server takeover bonus. https://windowsforum.com/threads/cve-2026-55006-patch-exchange-server-privilege-escalation.438232/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #MicrosoftSecurity #ExchangeServer #PatchTuesday https://t.co/ZwG36UgBo5

    Post summary

    The post announces a patch for CVE-2026-55006, a privilege‑escalation bug in Exchange Server that promotes low‑privileged users to full administrators.

    0000049
    1.2K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoftexchange_server2016--
Appmicrosoftexchange_server2019--
Appmicrosoftexchange_server2019--
Appmicrosoftexchange_server_subscription_edition---

Explore more

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