VulnSocial

CVE-2026-45500Patch(microsoft / exchange_server)

LOWCVSS 6.1 · MEDIUM

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

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

microsoft CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-79

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 · 2026-06-09: 1Patch / Workaround · 2026-06-09: 1Technical Details · 2026-06-09: 106-09
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • WindowsForum@windowsforum
    Patch

    🪟 Exchange spoofing CVE-2026-45500 drops and Microsoft basically whispers: “patch this like it’s a platform upgrade, not a cute little fix.” Translation: expect outages if you wait. #Windows #Microsoft #Exchange #Security https://windowsforum.com/threads/cve-2026-45500-exchange-spoofing-june-2026-patch-guidance-for-admins.424492/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #SecurityUpdates #PatchManagement https://t.co/Mr3btxwYKw

    Post summary

    The post alerts that Microsoft has issued a patch for the Exchange spoofing CVE-2026-45500 and urges administrators to apply it promptly to avoid potential outages; no evidence of active exploitation or PoC is provided.

    0000039
    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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