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CVE-2026-18556 CISA KEV · Actively exploitedSuited to automated attack · CISA

Unauthenticated administrative account takeover

CVSS score

8.2

EPSS probability

%7.9

Risk score

1.3

Published

2 mo ago

Related Security News

Articles and analysis bulletins in which the press and security publications have covered this vulnerability:

TheCyberThrone11.08.2026

StormEncryptor Ransomware Dissection

TL;DR Storm-1175, a financially motivated ransomware actor tracked by Microsoft, has introduced a custom ransomware payload dubbed StormEncryptor, marking a notable evolution from its previous reliance on the Medusa ransomware…

The Hacker News10.08.2026

China-Linked Hackers Deploy New StormEncryptor Ransomware, Likely via N-central Flaw

Microsoft has disclosed that Storm-1175, a financially motivated threat actor linked to China, has deployed a previously undocumented ransomware strain called StormEncryptor. The use of StormEncryptor marks a shift from the adversary's previous use of Medusa ransomware, the Microsoft Threat Intelligence Team said. "StormEncryptor is written in C++ and appends the file name extension .encrypted

The Hacker News10.08.2026

⚡ Weekly Recap: AI Goes Rogue, Metabase 0-Day, MCP Supply-Chain Attacks, and Router Backdoors

A lot of security problems still begin with someone doing a completely normal thing. Cloning a repo. Answering a call. Leaving a box exposed. Trusting the default. That pretty much covers the mood this week. Old bugs are back, supply chains are getting stranger, and some exploit paths are so short you wonder what was supposed to stop them in the first place. That’s only part of it. Here’s

Security.NL10.08.2026

Microsoft vermoedt dat criminelen ransomware verspreiden via N-Central-lek

Criminelen gebruiken vermoedelijk een beveiligingslek in N-Central van N-Able om organisaties met ransomware te infecteren, zo ...

The Hacker News08.08.2026

N-able Issues N-central Hotfix 2 as Attackers Reach Managed Systems and Persist

N-able has released a fresh round of hotfixes for N‑central as part of its investigation into ongoing exploitation of a recently disclosed security flaw in the Remote Monitoring and Management (RMM) product. "We are proactively expanding protections in response to ongoing monitoring of threat actors as they evolve their attack techniques," the company said. "This is not a duplicate of our

Security.NL07.08.2026

N-able komt na aanvallen op N-central RMM-servers met tweede hotfix

N-able is na aanvallen op N-central RMM-servers met een tweede hotfix gekomen die klanten moeten installeren. Ook wordt ...

TheCyberThrone06.08.2026

CISA Adds Four Vulnerabilities to KEV Catalog Aug 6 2026

Four Newly Added KEV Entries Reinforce the Growing Focus on Enterprise Management, AI, Middleware, and DevSecOps Platforms The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has expanded its Known Exploited…

The Hacker News05.08.2026

CISA Flags Langflow RCE, Tomcat, and N-central Flaws as Actively Exploited

The U.S. Cybersecurity and Infrastructure Security Agency (CISA), on August 5, 2026, added three flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2026-9198 (CVSS score: 9.8) - A code injection vulnerability in Langflow that allows unauthenticated attackers to achieve full remote

Rapid704.08.2026

CVE-2026-18577: N-able N-central Authentication Bypass Exploited in the Wild

OverviewOn August 2, 2026, N-able published a security advisory for CVE-2026-18577, an authentication bypass vulnerability affecting N-central that was discovered being exploited in-the-wild after an incomplete fix for an earlier authentication bypass issue, CVE-2026-18556 was disclosed. CVE-2026-18577 allows a remote unauthenticated attacker to bypass authentication and obtain administrative control of vulnerable N-central servers in affected deployments.N-able N-central is a widely deployed Remote Monitoring and Management (RMM) platform used by managed service providers (MSPs) and enterpris

The Hacker News04.08.2026

CISA Adds Exploited N-able N-central Flaw to KEV After Customer Compromises

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a high-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities (KEV) catalog following reports of active exploitation in the wild. The vulnerability, tracked as CVE-2026-18577 (CVSS score: 8.2), is a case of incomplete patching for CVE-2026-18556 (CVSS score: 8.2) that allows

The Hacker News03.08.2026

⚡ Weekly Recap: Rogue AI Models, $88M Bitcoin Theft, Water-System Attacks and Dangling DNS Hijacks

This week kept coming back to permission. A model crossed a boundary. A wallet trusted bad randomness. Webmail kept an intruder around. Public systems, package feeds, hotel networks, and login flows all gave away more than intended. Some of it was clever. Most of it was just access left lying around: old bugs, exposed gear, poisoned dependencies, weak defaults, and tooling that moved from

The Hacker News03.08.2026

N-able Says Attackers Take Over N-central Servers After Initial Fix Proves Incomplete

N-able said attackers exploited an authentication bypass in N-central to gain remote administrative access and reach the customer systems managed through those servers. Its first fix was incomplete. CVE-2026-18577 affects N-central builds prior to 2026.3.1.7. N-able shipped build 2026.3.1.7 on August 2 as the first unaffected version. N-central is the remote monitoring and management platform

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