Exploited Vulnerabilities Archives

Winsage

September 10, 2026

U.S. CISA adds Microsoft Windows, N-able N-central, and Adobe flaws to its Known Exploited Vulnerabilities catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has expanded its Known Exploited Vulnerabilities (KEV) catalog, adding critical vulnerabilities that need immediate attention. 1. CVE-2026-75650: A vulnerability in Adobe Commerce and Magento with a CVSS score of 10.0, allowing unauthenticated remote code execution. Affected versions include Magento Open Source releases 2.4.7, 2.4.8, and 2.4.9. It has been actively exploited since September 4. 2. CVE-2026-81963: A Microsoft Windows vulnerability with a CVSS score of 7.8, related to a link-following issue within the Update Stack, allowing local attackers to escalate privileges. It is currently being exploited. 3. CVE-2026-85880: Another Microsoft Windows vulnerability rated at 7.8, involving a heap-based buffer overflow in the ALPC component, permitting local privilege escalation. This flaw is also actively exploited. 4. CVE-2026-86218: A N-able N-central vulnerability with a CVSS score of 10.0, allowing pre-authenticated remote code execution. N-able has released an emergency hotfix for this issue. Federal agencies must address these vulnerabilities by specified deadlines: Windows flaws by September 22 and other vulnerabilities by September 11, 2026, in accordance with Binding Operational Directive (BOD) 22-01. Private organizations are advised to review the KEV catalog and take necessary actions to strengthen their infrastructure against these vulnerabilities.

Winsage

September 10, 2026

Microsoft patches 966 vulnerabilities: Two Windows zero-days actively exploited

On September 8, 2026, Microsoft released 966 security updates, the largest Patch Tuesday to date, addressing various vulnerabilities. Among these, 105 were classified as critical, including two zero-day vulnerabilities: CVE-2026-81963 and CVE-2026-85880. Both allow authorized local attackers to escalate privileges to SYSTEM level. CVE-2026-81963 is related to the Windows Update Stack, while CVE-2026-85880 involves a heap-based buffer overflow in the Windows Advanced Local Procedure Call (ALPC). The updates included 438 vulnerabilities related to privilege escalation, 258 concerning remote code execution, and 173 involving information disclosures. Users are advised to prioritize the installation of these updates due to the potential exploitation of the two critical vulnerabilities.

Winsage

September 10, 2026

CVE-2026-85880 and CVE-2026-81963: Microsoft Patches Two Actively Exploited Windows Zero-Days

Microsoft's Patch Tuesday on September 8, 2026, addressed two critical Windows privilege escalation vulnerabilities: CVE-2026-85880 and CVE-2026-81963, both with a CVSS score of 7.8. CVE-2026-85880 is a heap-based buffer overflow in the Windows Advanced Local Procedure Call (ALPC), allowing attackers with low-privilege local access to escalate privileges to SYSTEM. CVE-2026-81963 involves improper link resolution in the Windows Update Stack, enabling similar privilege escalation. Both vulnerabilities require no user interaction and have been actively exploited prior to the patch release. CISA added them to its Known Exploited Vulnerabilities catalog on September 8, 2026, with a remediation deadline of September 22 for U.S. federal agencies. CVE-2026-85880 affects various Windows 10 and Server versions but excludes Windows 11 and Windows Server 2025. CVE-2026-81963 impacts newer Windows platforms, including Windows 11 and Windows Server 2025. Microsoft released security updates for both vulnerabilities on September 8, 2026, and organizations are advised to prioritize these updates. Security teams should monitor for signs of privilege escalation and unusual SYSTEM-level activities related to these vulnerabilities.

Winsage

September 9, 2026

Four Spy Groups Used the Same Chrome and Windows Exploit Kit Within a Week

Recent investigations have identified the BlueMoon exploit kit, used by espionage-driven threat activity clusters, particularly linked to APT31, a China-aligned state-sponsored group, since August 28, 2026. BlueMoon exploits three vulnerabilities: CVE-2026-85046 (a type confusion vulnerability in Google Chrome's V8 engine), an unassigned V8 sandbox escape, and CVE-2026-85880 (a heap-based buffer overflow in Windows ALPC). Google and Microsoft have released patches for these vulnerabilities, which were exploited as "patch-gap" zero-days. The attack vectors typically begin with phishing emails that lead victims to malicious URLs, triggering the vulnerabilities for code execution and privilege escalation. Variants of BlueMoon have been detected, featuring modifications for specific campaigns. Notable attack chains include: - APT31 targeting NGOs and mining firms in the U.S. with a malicious browser add-on called GemStone. - UNK_LateNight targeting U.S. aerospace companies, deploying BlueMoon alongside the ShadowPad backdoor. - UNK_DoubleCheck targeting a Vietnamese manufacturer, using DLL sideloading to execute a Rust binary. - UNK_QuietRacket targeting government and financial organizations in Indonesia and Singapore, modifying BlueMoon to execute a .NET assembly. CISA added the Chrome flaw to its Known Exploited Vulnerabilities catalog on September 4, 2026, requiring federal agencies to apply patches by September 18, 2026. Indicators of compromise include specific process trees, files, folders, scheduled tasks, mutexes, and registry keys. Proofpoint has released detection rules to help organizations identify and mitigate these threats.

Winsage

September 9, 2026

Microsoft Patches Record 974 Flaws, Including Two Exploited Windows Zero-Days

Microsoft addressed 974 vulnerabilities in its software suite during its recent Patch Tuesday, marking a record high. The breakdown includes 723 flaws in Windows, 111 in Office, 62 in SQL, and 22 in Developer Tools, with over 110 rated as critical. Two actively exploited vulnerabilities are CVE-2026-85880 and CVE-2026-81963, both allowing local privilege elevation. Other notable vulnerabilities include CVE-2026-55007 (8.1), CVE-2026-80097 (8.6), CVE-2026-69465 (8.8), and several with CVSS scores of 9.6 and above. Microsoft has patched a total of 2,760 security flaws this year, reflecting a trend of increasing vulnerability discoveries. Despite the extensive patching, no significant spike in active exploits has been observed.

Winsage

September 9, 2026

Microsoft Patch Tuesday for September 2026 — Snort rules and prominent vulnerabilities

Microsoft's September 2026 security update revealed 973 vulnerabilities, with 113 classified as critical. Two actively exploited vulnerabilities are CVE-2026-81963 (Windows Update Stack, elevation of privilege, CVSS 7.8) and CVE-2026-85880 (Windows ALPC, elevation of privilege, CVSS 7.8). Among the 113 critical vulnerabilities, 82 are remote code execution (RCE) vulnerabilities. Notable vulnerabilities include: - CVE-2026-69676: RCE in Windows Kerberos, CVSS 8.8, authentication bypass. - CVE-2026-69852: RCE in Windows RRAS, CVSS 7.5, heap-based buffer overflow. - CVE-2026-72957: RCE in Windows Deployment Services, CVSS 7.8. - CVE-2026-69854: Elevation of privilege in Spring Cloud Azure, CVSS 9.0, improper authentication. - CVE-2026-83501: Information disclosure in Windows VBS, CVSS 5.5. - CVE-2026-69730: RCE in Windows DNS Server, CVSS 9.8. Less likely to be exploited vulnerabilities include: - CVE-2026-69845: RCE in Windows DHCP Server, CVSS 9.8, heap-based buffer overflow. - CVE-2026-65772: Vulnerability in Microsoft Dynamics 365 On-Premises, CVSS 8.8, deserialization of untrusted data. - CVE-2026-66302: RCE in Skype for Business, CVSS 9.8. Additional critical vulnerabilities include: - CVE-2026-62916: Elevation of privilege in Microsoft Entra ID, CVSS 9.1. - CVE-2026-83941: Elevation of privilege in Entra ID, CVSS 9.9. - CVE-2026-80098: Vulnerability in Copilot Studio, CVSS 9.3, improper verification of cryptographic signatures. Talos is releasing a new Snort ruleset to detect attempts to exploit these vulnerabilities, with specific SIDs for Snort 2 and Snort 3 rule coverage.

Tech Optimizer

August 26, 2026

How to Protect Against Ransomware: 13 Steps [2026]

Global ransomware attacks increased by 0.8% quarter-over-quarter in Q2 2026. The group Qilin has 279 confirmed victims, maintaining its position as the leading threat actor for four consecutive quarters. The rival group The Gentlemen saw a 62% increase in victims, reaching 269. Checkpoint Research's report indicates a shift in the ransomware landscape, challenging the narrative of declining attacks. IBM's analysis shows breaches within supply chains and third-party vendors have quadrupled over the past five years. Effective ransomware protection requires administrative access to endpoints, firewalls, and backup systems, along with specific software versions and tools. The 3-2-1-1-0 backup strategy is recommended, emphasizing offline, immutable backups. Organizations should implement multi-factor authentication (MFA) across all access points and actively patch known vulnerabilities. Network segmentation is crucial to limit ransomware spread, and canary files can provide early warnings of attacks. Regular phishing simulations and a well-documented incident response plan are essential for preparedness.

Winsage

August 18, 2026

CISA confirms 2025 Windows Task Host flaw exploited by ransomware groups

The Cybersecurity and Infrastructure Security Agency (CISA) confirmed a privilege escalation vulnerability in the Windows Task Host, designated as CVE-2025-60710, which is being exploited by ransomware groups. Microsoft released a patch for this flaw on November 11, 2025, and CISA added it to its Known Exploited Vulnerabilities catalog on April 13. The vulnerability allows scheduled tasks to operate at the highest privilege level, enabling attackers to delete files and potentially gain full control over a machine. This access can lead to the extraction of credentials, manipulation of endpoint protection, and lateral movement across networks, culminating in widespread ransomware deployment. Security experts emphasize the critical nature of this vulnerability and urge organizations to address it promptly, as it poses significant risks to systems running Windows 11 and Server 2025.

Winsage

August 18, 2026

CISA: Windows Task Host flaw now exploited by ransomware gangs

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) confirmed that ransomware gangs are exploiting a significant vulnerability in the Windows Task Host system, tracked as CVE-2025-60710. This high-severity flaw, affecting Windows 11 and Windows Server 2025, allows local attackers with basic user permissions to escalate their privileges to SYSTEM level. Microsoft patched this vulnerability in November 2025, but it poses a threat to unpatched devices. CISA added CVE-2025-60710 to its list of actively exploited vulnerabilities on April 13 and provided Federal Civilian Executive Branch agencies with a two-week window to secure their systems. CISA warns that such vulnerabilities are frequent attack vectors for malicious actors and urges organizations to apply mitigations or discontinue the use of affected products. Additionally, CISA noted that ransomware groups are also exploiting a Microsoft SharePoint remote code execution vulnerability (CVE-2026-45659), confirmed to be actively exploited in early July. Since November 2021, CISA has identified 383 actively exploited vulnerabilities across various Microsoft products, with 112 being used in ransomware attacks.

Winsage

August 16, 2026

LeakWatch CW 33/2026: Windows Zero-Day, AMD, Intel and Malware

- The August Patch Tuesday release included 421 vulnerabilities, with 236 affecting Windows, highlighting CVE-2026-68820, a critical use-after-free vulnerability that allows privilege escalation to SYSTEM level without user interaction. - CISA added CVE-2026-68820 to its Known Exploited Vulnerabilities Catalog, confirming its active exploitation. - AMD's Ryzen Master software has vulnerabilities, including CVE-2025-54512 (DLL hijacking) and CVE-2026-0465 (use-after-free), which could allow code execution with elevated privileges. - AMD's advisory on CVE-2026-6726 and CVE-2026-6727 indicates vulnerabilities in the TPM 2.0 reference code affecting Ryzen platforms, leading to potential information disclosure. - Intel's advisories included updates for microcode, Wi-Fi software, and NPU drivers, with CVE-2026-20760 addressing privilege escalation risks. - Google’s Chrome update on August 11 fixed five high-severity vulnerabilities, including use-after-free flaws. - Gunra malware has evolved into a ransomware-as-a-service model using a double-extortion strategy. - WindRelay malware combines SpyNote RAT with an NFC relay component, allowing attackers to relay NFC communication between a victim's bank card and a remote device. - The findings emphasize the need to view vulnerabilities as part of potential attack chains, highlighting the complexity of modern cybersecurity threats.