All news with #privilege escalation tag

🔒 Microsoft fixed a critical vulnerability chain named SearchLeak in Microsoft 365 Copilot Enterprise that could let attackers exfiltrate mailbox, OneDrive, and SharePoint data via a single crafted URL. Researchers at Varonis chained a parameter-to-prompt injection, an HTML rendering race condition, and a Bing SSRF-based CSP bypass to make Copilot fetch and leak sensitive content. The issue was addressed as CVE-2026-42824 and requires no user action now that Microsoft patched it.

🔒 Microsoft released June 2026 updates fixing three zero-day vulnerabilities disclosed by a researcher known as "Nightmare Eclipse." The flaws—GreenPlasma and MiniPlasma (local privilege escalation) and YellowKey (WinRE backdoor)—allow attackers to escalate to SYSTEM or bypass BitLocker on affected Windows systems. Microsoft provided mitigations for YellowKey and criticized the public disclosure of proof-of-concepts.

🛡️ Microsoft released fixes for a record 206 security vulnerabilities in June 2026, including three publicly disclosed flaws. The update covers 39 Critical and 167 Important issues, spanning privilege escalation, RCE, information disclosure, spoofing, and more, and includes two non-Microsoft CVEs and numerous Chromium fixes affecting Edge. Notable patched bugs include a Windows Kernel use-after-free (CVE-2026-45657), HTTP.sys and DHCP client RCEs, and several BitLocker bypasses addressed after public PoCs.

🛡️ Microsoft released June Patch Tuesday updates addressing 200 vulnerabilities, including three publicly disclosed zero-days. The release fixed 33 critical CVEs — mostly remote code execution bugs — and a large share of elevation-of-privilege issues. Notable fixes include the HTTP/2 Bomb DoS (CVE-2026-49160), a BitLocker bypass (CVE-2026-50507), and a CTFMON elevation-of-privilege flaw (CVE-2026-45586). Administrators are advised to prioritize patches for several high-risk RCE and EoP bugs affecting Windows components like Win32K, Remote Desktop, DHCP client, and Hyper-V.

🔒 Cisco warns of an actively exploited high-severity vulnerability in Catalyst SD‑WAN Manager that allows authenticated attackers to escalate privileges to root. The flaw, tracked as CVE-2026-20245, requires local access and netadmin privileges but can be chained with prior authentication bypass bugs. Cisco recommends upgrading to the latest versions, checking edge device configurations, saving logs, and contacting TAC if indicators of compromise are found.

🔒 Security researchers published a working exploit for a Linux kernel use-after-free, CVE-2026-23111, allowing unprivileged local users to escalate to root and escape containers. The bug resides in nf_tables packet-filtering code and was patched upstream on February 5, 2026; public exploit write-ups appeared in April and June. The reachable setup requires nf_tables and unprivileged user namespaces, common defaults on many desktops and server builds. Administrators should update their kernel packages and reboot to mitigate the issue.

🔒 Cisco has disclosed a high-severity vulnerability, CVE-2026-20245, affecting Catalyst SD‑WAN Manager deployments including on-premises and cloud variants. The flaw allows an authenticated local attacker with netadmin privileges to execute arbitrary commands as root by uploading a crafted file due to insufficient input validation. Cisco noted limited cases of configuration changes pushed to edge devices and advised applying fixes for related authentication bypass flaws (CVE-2026-20182) while monitoring /var/log/scripts.log for IoCs.

🔒 Cisco warned of a high‑severity, unpatched zero‑day (CVE-2026-20245) in the Catalyst SD‑WAN Manager actively exploited to escalate to root. The flaw affects all deployment types and results from insufficient validation of user‑supplied input, allowing local attackers with netadmin privileges to perform command injection by uploading crafted files. Cisco noted limited cases of configuration changes pushed to edge devices and advised contacting TAC and producing admin‑tech logs for investigation. Patches are not yet available; customers were urged to install fixes for related CVE-2026-20182.

🔒 Cisco patched a server-side request forgery in Unified Communications Manager tracked as CVE-2026-20230 that allows unauthenticated network attackers to write files to the underlying OS and then escalate to root. Proof-of-concept exploit code is public and Cisco's PSIRT has not observed in-the-wild use yet. The flaw requires the WebDialer service to be running; WebDialer is off by default but exposes systems where it is enabled. Patching is recommended (14SU6 for the 14 train; interim COP or disable WebDialer until 15SU5 for the 15 train).

🛡️ Cisco patched a high-severity SSRF in Unified Communications Manager, while Russia reported large-scale mobile spyware targeting officials and ongoing investigations. Threat actors continue to distribute VIP Keylogger via layered social engineering and JavaScript loaders, and DriveSurge operates a widespread malware delivery network using ClickFix and FakeUpdates. U.S. sanctions hit major Iranian crypto exchanges; RMM and trusted tools are increasingly abused for persistence and privilege escalation.

🔒 Cisco released updates for a critical Unified Communications Manager (Unified CM) vulnerability (CVE-2026-20230) that can be exploited via SSRF to gain root privileges. The issue affects systems with the WebDialer service enabled, which is disabled by default, and Cisco notes public proof-of-concept exploit code is available. Administrators should apply patched versions 14SU6 or 15SU5 or temporarily disable the WebDialer service as a mitigation.

🔒 Defiant's Wordfence observed active exploitation of a critical privilege escalation bug (CVE-2026-8206) in the Kirki - Freeform Page Builder plugin, used on over 500,000 sites. The flaw, introduced in version 6.0.0 and present through 6.0.6, exposes a password reset endpoint that sends reset links to attacker-supplied emails, enabling account takeover. Vendor patched the issue in v6.0.7; site owners must update or disable the plugin immediately.

🔒 Google released June 2026 security patches addressing 124 Android vulnerabilities, including a high-severity Framework flaw tracked as CVE-2025-48595 affecting Android 14–16 and 16 QPR2. This privilege escalation bug can be exploited without user interaction and is reportedly under limited targeted exploitation. The June updates arrive in two batches, with the latter adding kernel and chipset fixes from MediaTek, Qualcomm, Unisoc, and others.

🛡️ WP Maps Pro, a popular WordPress plugin, contains a critical privilege escalation vulnerability (CVE-2026-8732) that allows unauthenticated attackers to create administrator accounts and take over sites. The flaw affects all versions up to 6.1.0 and was fixed in 6.1.1. Security researcher David Brown reported the issue, and Wordfence has observed active exploitation attempts. Site owners must update immediately to mitigate ongoing attacks.

🔒 A critical vulnerability in WP Maps Pro (CVE-2026-8732) allowed unauthenticated attackers to create administrator accounts via a flawed "temporary access" AJAX endpoint. Discovered by researcher David Brown, the issue affected versions 6.1.0 and older and relied on a publicly exposed nonce in frontend JavaScript, making protections ineffective. Defiant observed active exploitation attempts and blocked thousands of requests, and the vendor released WP Maps Pro 6.1.1 to address the flaw. Site owners are urged to update immediately to prevent account takeover and persistent backdoors.

🛡️ A local privilege escalation named CIFSwitch in the Linux kernel allows forging of CIFS authentication key descriptions and abuse of the kernel key request flow, enabling root privilege escalation. The vulnerability affects kernels paired with vulnerable cifs-utils (6.14+) on several major distributions when user namespaces and permissive SELinux/AppArmor settings are present. The attacker can trigger a privileged cifs.upcall to trust attacker-controlled fields, force a namespace switch, and load a malicious NSS module before privilege drop. A kernel patch validating cifs.spnego request origins is available upstream; mitigations include disabling the CIFS module, removing cifs-utils, and disabling unprivileged user namespaces.

🛡️ An unpatched zero-day in the Gogs self-hosted Git service allows authenticated non-admin users to gain remote code execution on Internet-facing instances. The flaw, an argument injection in the Merge() code path affecting Gogs 0.14.2 and 0.15.0+dev, can be exploited via malicious branch names during a rebase-merge operation. Researcher Jonah Burges reported the issue in March; maintainers have acknowledged but not yet patched it. Shadowserver and Shodan count thousands of exposed Gogs servers, many with default open registration enabled.

🛡️ Microsoft has criticized researchers for publicly disclosing six zero-day vulnerabilities before patches were available, calling such actions irresponsible and risky. The company said its security teams are working around the clock to investigate and mitigate issues including privilege escalation and bypass flaws in Defender and BitLocker. Microsoft urged adherence to industry-standard coordinated vulnerability disclosure (CVD) practices, typically allowing a 90-day embargo for patch development. It cautioned that uncoordinated releases can place proof-of-concept exploit code into malicious hands and undermines efforts to protect customers.

🔒 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch a critical, actively exploited privilege escalation flaw in the LiteSpeed cPanel user-end plugin, tracked as CVE-2026-48172. LiteSpeed released urgent updates to fix the issue in the lsws.redisAble function and advised administrators to check logs and block suspicious IPs. CISA added the flaw to its known exploited vulnerabilities catalog and required patches by May 29 under BOD 22-01.

⚡ This week's recap covers supply-chain compromises, resurfacing legacy bugs, and security tools themselves being targeted. Key incidents include a poisoned Nx Console VS Code extension leading to a GitHub breach, new active exploitation of Microsoft Defender flaws, and a nine-year-old Linux kernel privilege bug. Teams face increasing targeted phishing and widespread botnet scanning, while organizations scramble to patch critical CVEs and secure exposed services.