CVE-2026-56171General(microsoft / remote_desktop_web_client)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch microsoft remote_desktop_web_client systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.

microsoft CVEs Back to dashboard

0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56171

Weakness type (CWE)

CWE-359

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

remote_desktop_web_client
windows_admin_center

Threat summary

Patch or workaround signal is available
9 mentions across 5 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 4 signals
Technical details provided in 6 signals
General: 5 classified signals
Peaked 3d ago at 5 mentions (2026-07-17); latest day: 1
9 total mentions across 5 days

Affected systems

Vendors

microsoft

Products

remote_desktop_web_clientwindows_admin_center

Deep dive

Activity timeline9 mentions / 5d

Signal classification2 categories

General

555.6%

Patch

444.4%

Referenced assets7 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-16	1	Patch1
2026-07-17	5	General3Patch2
2026-07-18	1	General1
2026-07-22	1	Patch1
2026-08-15	1	General1

Full discourse9 posts

The Dustin Childs@dustin_childs92d
Patch
As if Tuesday wasn't enough, #Microsoft released 4 patches yesterday: CVE-2026-56171: RDP Information Disclosure Vulnerability CVE-2026-58598: Backup Service EoP Vulnerability CVE-2026-58643: Admin Center Spoofing Vulnerability CVE-2026-59117: Windows Terminal RCE Vulnerability
Post summary
Microsoft announced the release of four patches addressing CVE-2026-56171 (RDP information disclosure), CVE-2026-58598 (Backup Service EoP), CVE-2026-58643 (Admin Center spoofing), and CVE-2026-59117 (Windows Terminal RCE).
001961.3K
2.4K followersView on X
IntegSec@integ_sec63d
General
CVE-2026-56171: Windows RDP Information Disclosure Vulnerability - What It Means for Your Business and How to Respond https://hubs.li/Q04t7wxY0
Post summary
The headline references CVE‑2026‑56171 as a Windows RDP information disclosure issue but provides no PoC, exploit, patch, or active exploitation details.
0000031
32 followersView on X
𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_irc87d
Patch
New Windows RDP info disclosure (CVE-2026-56171), modified ~1 hr ago, threatens data privacy & integrity in transit. Secure remote comms are critical. Patch RDP endpoints now. #Cybersecurity #Vulnerabilities #RDP
Post summary
Alert on CVE-2026-56171, a Windows RDP information disclosure, urging users to patch RDP endpoints immediately to safeguard data privacy and integrity.
0000045
15 followersView on X
Vulmon Vulnerability Feed@VulmonFeeds91d
General
CVE-2026-56171 Information Disclosure in Windows RDP via Unauthorized Network Access https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-56171
Post summary
The text simply announces the existence of a Windows RDP information‑disclosure CVE with minimal technical detail, without evidence of PoC, exploitation, or mitigation.
0000096
4.1K followersView on X
Infoflowcloud@infoflowcloud92d
General
🚨*CVE* CVE-2026-56171 Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-56171 ----- Traducción: CVE-2026-56171 Exposición de infor… http://infoflow.cloud`
Post summary
The post shares a link to a CVE record describing an information disclosure flaw in Windows RDP, but provides no PoC, exploit details, or patch information.
0000034
92 followersView on X
CVE@CVEnew92d
General
CVE-2026-56171 Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-56171
Post summary
The text briefly summarizes CVE-2026-56171, noting that Windows RDP can expose private personal information to unauthorized attackers, without any additional details on exploitation or mitigation.
00000710
57.8K followersView on X
VulDB 🛡@vuldb92d
General
There is a new vulnerability with elevated criticality in Microsoft Windows (CVE-2026-56171) https://vuldb.com/vuln/380001
Post summary
A reference to a newly disclosed Windows CVE is made, but no additional technical or operational details are provided.
00000115
2.3K followersView on X
VulniPulse@vulnipulse92d
Patch
⚠️ MS Server Remote Desktop Web Client alert: CVE-2026-56171 (CVSS 7.1) Attackers could access sensitive information. Upgrade to a vendor-listed fixed release. https://vulnipulse.com/advisories/microsoft-cve-2026-56171 #Microsoft #RemoteDesktopWebClient #CyberSecurity #CVE
Post summary
The advisory announces CVE-2026-56171 as a Remote Desktop Web Client flaw that could expose sensitive data and urges users to upgrade to a vendor-released fix; no PoC or exploitation details are disclosed.
0000042
6 followersView on X
Windows Forum@windowsforum93d
Patch
🪟 Another Windows RDP flaw, another reason to patch before attackers learn the details Microsoft hasn’t shared yet. “Information disclosure” is corporate speak for “please don’t wait.” https://windowsforum.com/threads/cve-2026-56171-patch-windows-rdp-information-disclosure-flaw.438988/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #RemoteDesktopProtocol #July2026Updates #Cve202656171 https://t.co/wcmDcnurpP
Post summary
The tweet highlights CVE-2026-56171, a Windows RDP information‑disclosure flaw, and urges users to patch the vulnerability before attackers obtain details, but it offers no technical or exploit information.
0000015
1.3K followersView on X

CPE platform detail2 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

2 of 2 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	remote_desktop_web_client	-	-	-
App	microsoft	windows_admin_center	-	-	-

Explore more

Back to dashboard microsoft CVEs remote_desktop_web_client vulnerabilities

What researchers are saying

CVE-2026-56171

IntegSec[verified]@integ_secGeneral

The headline references CVE‑2026‑56171 as a Windows RDP information disclosure issue but provides no PoC, exploit, patch, or active exploitation details.

VulniPulse[verified]@vulnipulsePatch

The advisory announces CVE-2026-56171 as a Remote Desktop Web Client flaw that could expose sensitive data and urges users to upgrade to a vendor-released fix; no PoC or exploitation details are disclosed.

Windows Forum[verified]@windowsforumPatch

The tweet highlights CVE-2026-56171, a Windows RDP information‑disclosure flaw, and urges users to patch the vulnerability before attackers obtain details, but it offers no technical or exploit information.

The Dustin Childs@dustin_childsPatch

Microsoft announced the release of four patches addressing CVE-2026-56171 (RDP information disclosure), CVE-2026-58598 (Backup Service EoP), CVE-2026-58643 (Admin Center spoofing), and CVE-2026-59117 (Windows Terminal RCE).

𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_ircPatch

Alert on CVE-2026-56171, a Windows RDP information disclosure, urging users to patch RDP endpoints immediately to safeguard data privacy and integrity.

Vulmon Vulnerability Feed@VulmonFeedsGeneral

The text simply announces the existence of a Windows RDP information‑disclosure CVE with minimal technical detail, without evidence of PoC, exploitation, or mitigation.

Infoflowcloud@infoflowcloudGeneral

The post shares a link to a CVE record describing an information disclosure flaw in Windows RDP, but provides no PoC, exploit details, or patch information.

CVE@CVEnewGeneral

The text briefly summarizes CVE-2026-56171, noting that Windows RDP can expose private personal information to unauthorized attackers, without any additional details on exploitation or mitigation.