CVE-2026-50515Patch(microsoft / azure_service_bus)

LOWCVSS 9.9 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch microsoft azure_service_bus systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code 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-2026-50515

Weakness type (CWE)

CWE-502

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.

azure_service_bus

Threat summary

Patch or workaround signal is available
4 mentions across 3 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 2 signals
Technical details provided in 4 signals
Disclosure: 2 classified signals
Peaked 1d ago at 2 mentions (2026-08-07); latest day: 1
4 total mentions across 3 days

Affected systems

Vendors

microsoft

Products

azure_service_bus

1 version affected across 1 product

Deep dive

Activity timeline4 mentions / 3d

Signal classification2 categories

Patch

250.0%

Disclosure

250.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-08-06	1	Patch1
2026-08-07	2	Disclosure1Patch1
2026-08-09	1	Disclosure1

Full discourse4 posts

Steve Waterhouse@Water_Steve45d
Patch
Pour votre information // For your information Bon weekend ! Correctifs hors-cycle (#OoB) menaçant envers les les produits logiciels de @Microsoft et @Apple déployés En provenance de l'article de @SecurityWeek ci-bas mentionné: "Trois de ces vulnérabilités, CVE-2026-63508, CVE-2026-56162 et CVE-2026-65667, ont un niveau de gravité maximal de 10/10. Quatre autres vulnérabilités, CVE-2026-50515 (RCE dans #Azure Service Bus), CVE-2026-62830 (EoP dans #Azure SRE Agent), CVE-2026-59115 (EoP dans #Entra Provisioning Service) et CVE-2026-50481 (EoP dans #ActiveDirectory) ont un score CVSS de 9,9/10. Ces quatre vulnérabilités sont exploitables à distance. Des correctifs visant à remédier à cette faille de sécurité ont été intégrés dans #macOS #Tahoe 26.6.1, #macOS #Sequoia 15.7.9 et #macOS #Sonoma 14.8.9" 20260807 - #Microsoft, #Apple Release Fresh #SecurityUpdates https://www.securityweek.com/microsoft-apple-release-fresh-security-updates/ #infosec #cybersecurity #secinfo #cybersecurite #cyberwar #cyberwarfare #OPSEC @infosecsw #criticalinfrastructure #infrastructureessentielle #patchmanagement #gestioncorrectifs #DQP #ASAP
Post summary
The post highlights newly released out‑of‑cycle patches for Microsoft and Apple products, detailing several high‑severity CVEs and their technical specifics, while confirming that these vulnerabilities are remotely exploitable and are now mitigated in recent macOS releases.
01010161
3.9K followersView on X
Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters43d
Disclosure
CVE-2026-50515 - Critical deserialization RCE in Azure Service Bus. Authorized attacker can execute code over network. CVSS 9.9, unpatched. Harden access and monitor now. #CVE #Azure #infosec https://www.valtersit.com/cve/CVE-2026-50515 #infosec #cybersecurity #CVE #Linux #infosec #infosec #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #ethicalhacking #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu
Post summary
The tweet discloses that CVE‑2026‑50515 is a critical deserialization RCE in Azure Service Bus with a CVSS score of 9.9 and remains unpatched, but it provides no evidence of a PoC, exploit code, or active exploitation.
0000077
1.0K followersView on X
CVE@CVEnew46d
Disclosure
CVE-2026-50515 Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network. https://www.cve.org/CVERecord?id=CVE-2026-50515
Post summary
The text announces a new Azure Service Bus deserialization vulnerability (CVE-2026-50515) that lets authorized attackers execute code, with no mention of deals with PoC, exploitation, or patches.
000001.3K
57.9K followersView on X
Windows Forum@windowsforum46d
Patch
☁️ Azure Service Bus has an RCE, but customers get no patch to install—Microsoft must fix it server-side. Cloud convenience: your security update is now a waiting game. https://windowsforum.com/security-alerts.84/cve-2026-50515-azure-service-bus-rce-has-no-customer-patch.441882/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #MicrosoftSecurity #RemoteCodeExecution #CloudSecurity #AzureServiceBus https://t.co/yqbLB21F3a
Post summary
The post alerts that Azure Service Bus suffers from an RCE (CVE‑2026‑50515), but no customer‑installable patch exists yet, urging Microsoft to address it server‑side.
0000064
1.3K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	azure_service_bus	-	-	-

Explore more

Back to dashboard microsoft CVEs azure_service_bus vulnerabilities

What researchers are saying

CVE-2026-50515

Steve Waterhouse[verified]@Water_StevePatch

The post highlights newly released out‑of‑cycle patches for Microsoft and Apple products, detailing several high‑severity CVEs and their technical specifics, while confirming that these vulnerabilities are remotely exploitable and are now mitigated in recent macOS releases.

Hugo | DevOps | Cybersecurity 🇱🇻[verified]@HugoValtersDisclosure

The tweet discloses that CVE‑2026‑50515 is a critical deserialization RCE in Azure Service Bus with a CVSS score of 9.9 and remains unpatched, but it provides no evidence of a PoC, exploit code, or active exploitation.

Windows Forum[verified]@windowsforumPatch

The post alerts that Azure Service Bus suffers from an RCE (CVE‑2026‑50515), but no customer‑installable patch exists yet, urging Microsoft to address it server‑side.

CVE@CVEnewDisclosure

The text announces a new Azure Service Bus deserialization vulnerability (CVE-2026-50515) that lets authorized attackers execute code, with no mention of deals with PoC, exploitation, or patches.