All news with #active exploitation tag

⚠️ A critical ABAP code injection flaw, tracked as CVE-2025-42957, in an RFC-exposed function of SAP S/4HANA is being exploited in the wild to breach exposed servers. The bug allows low-privileged authenticated users to inject arbitrary code, bypass authorization checks, and take full control of affected systems. SAP issued a fix on August 11, 2025 (CVSS 9.9), but SecurityBridge reports active, limited exploitation and urges immediate patching.

⚠️ SAP patched a critical command injection in SAP S/4HANA tracked as CVE-2025-42957 (CVSS 9.9) that allows low-privileged users to inject arbitrary ABAP via an RFC-exposed function module, bypassing authorization checks. SecurityBridge and NVD report active exploitation affecting both on-premise and Private Cloud editions, with potential for full system compromise. Organizations are urged to apply SAP's monthly fixes immediately, monitor for suspicious RFC calls or new admin accounts, implement network segmentation and backups, adopt SAP UCON to restrict RFC usage, and review access to authorization object S_DMIS activity 02.

⚠️ A critical code injection vulnerability in SAP S/4HANA (CVE-2025-42957, CVSS 9.9) is being actively exploited in the wild, researchers warn. The flaw allows a low-privileged user to inject ABAP code and gain full system and operating system access across all S/4HANA releases. SecurityBridge confirmed practical abuse and noted the exploit was straightforward to develop because ABAP code is openly viewable. Organizations that have not yet applied the August 11 patch should install it immediately to prevent complete data compromise and unauthorized administrative access.

⚠️ Mandiant reports attackers are actively exploiting a leaked ASP.NET machineKey sample from old Sitecore deployment guides to carry out ViewState code-injection attacks that execute arbitrary .NET assemblies in server memory. The issue, tracked as CVE-2025-53690, affects multi-instance deployments of Sitecore XM, XP, and XC that used the static sample key, and may also impact some Sitecore Managed Cloud Standard container configurations. After initial access, adversaries deploy tools Mandiant calls WEEPSTEEL and EARTHWORM, escalate to SYSTEM, create administrative accounts, dump SYSTEM/SAM hives, and move laterally. Sitecore customers are advised to inspect environments for indicators of compromise, rotate and encrypt <machineKey> entries, and follow Microsoft ASP.NET ViewState guidance.

🔒 HexStrike-AI, an open-source red‑teaming framework, is being adopted by malicious actors to rapidly weaponize newly disclosed Citrix NetScaler vulnerabilities such as CVE-2025-7775, CVE-2025-7776, and CVE-2025-8424. Check Point Research reports dark‑web chatter and evidence of automated exploitation chains that scan, exploit, and persist on vulnerable appliances. Defenders should prioritize immediate patching, threat intelligence, and AI-enabled detection to reduce shrinking n‑day windows.

🔒 Mandiant and Sitecore investigated an active ViewState deserialization exploit that allowed remote code execution on internet-facing Sitecore instances that used publicly exposed sample ASP.NET machine keys. Tracked as CVE-2025-53690, the vulnerability enabled attackers to craft malicious __VIEWSTATE payloads, deploy a reconnaissance backdoor (WEEPSTEEL), and stage tunneling and remote access tooling. Sitecore has updated deployments to auto-generate unique machine keys and notified affected customers; Mandiant recommends rotating keys, enabling ViewState MAC, and encrypting secrets in web.config to mitigate similar attacks.

⚠️ HexStrike AI, an open-source AI-driven offensive security platform, is being tested by threat actors to exploit recently disclosed vulnerabilities. Check Point reports criminals claim success exploiting Citrix NetScaler flaws and are advertising flagged instances for sale. The tool's automation and retry capabilities can shorten the window to mass exploitation; immediate action is to patch and harden systems.

⚠️ CISA has added two TP-Link vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog after evidence of active exploitation: CVE-2023-50224 (TL-WR841N authentication bypass) and CVE-2025-9377 (Archer C7(EU) and TL-WR841N/ND(MS) OS command injection). The agency notes these flaw types are frequent attack vectors and impose significant risk to the federal enterprise under BOD 22-01. Although the directive binds Federal Civilian Executive Branch agencies, CISA urges all organizations to prioritize remediation and reduce exposure.

🔒 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a high‑severity flaw in TP‑Link TL‑WA855RE Wi‑Fi range extenders (CVE‑2020‑24363, CVSS 8.8) to its Known Exploited Vulnerabilities catalog after evidence of active exploitation. The missing authentication issue lets an unauthenticated attacker on the same network submit a TDDP_RESET request to factory‑reset the device and set a new administrative password. CISA also added a WhatsApp vulnerability (CVE‑2025‑55177, CVSS 5.4) that was chained with an Apple platform flaw in a targeted spyware campaign; federal agencies must apply mitigations by September 23, 2025.

⚠️ HexStrike-AI is a newly released framework that acts as an orchestration “brain,” directing more than 150 specialized AI agents to autonomously scan, exploit, and persist inside targets. Within hours of release, dark‑web chatter showed threat actors attempting to weaponize it against recent zero‑day CVEs, dropping webshells enabling unauthenticated remote code execution. Although the targeted vulnerabilities are complex and typically require advanced skills, operators claim HexStrike-AI can reduce exploitation time from days to under 10 minutes, potentially lowering the barrier for less skilled attackers.

⚠️ A newly discovered campaign attributed to the Silver Fox APT abuses trusted Microsoft-signed drivers to bypass security protections and install a remote access tool. Check Point Research found attackers used the WatchDog driver (amsdk.sys) and an older Zemana-based driver to terminate antivirus and EDR processes, enabling deployment of ValleyRAT. Researchers observed loaders with anti-analysis, persistence, embedded drivers and hardcoded lists of security processes, and warn that timestamp edits can preserve valid signatures while evading hash-based detection.

🔒 WhatsApp has patched a critical zero-day (CVE-2025-55177) affecting linked-device synchronization that could allow processing of content from an arbitrary URL on a target device. The vendor says the flaw, when combined with an Apple OS-level out-of-bounds write (CVE-2025-43300), may have been exploited in a targeted, sophisticated zero-click attack. Apple patched the related OS issue on August 20. Users should apply the updated WhatsApp and WhatsApp Business iOS and Mac clients immediately.

🔒 Three vulnerabilities affecting the Sitecore Experience Platform can be chained to escalate from HTML cache poisoning to remote code execution. Researchers describe a pre-auth HTML cache reflection (CVE-2025-53693) combined with an insecure deserialization RCE (CVE-2025-53691) and an ItemService API information-disclosure bug (CVE-2025-53694) that permits cache key enumeration and poisoned HTML injection. Sitecore issued patches in June and July 2025; administrators should apply updates, restrict ItemService exposure to trusted networks, and consider WAF rules and other mitigations to reduce the chaining risk.

⚠️ Recent investigations show a wave of active attacks against WordPress plugins and themes, including Gravity Forms, the Alone and Motors themes, and Post SMTP. Exploits have enabled remote code execution, administrator account takeover, and mass site compromise, while the Efimer trojan has been distributed from some infected sites. Vendors have issued patches, but many sites remain unpatched—site owners should update immediately and follow hardening best practices.

⚠️ CISA added CVE-2025-57819, an authentication bypass in Sangoma FreePBX, to its Known Exploited Vulnerabilities (KEV) Catalog after evidence of active exploitation. The vulnerability is a frequent attack vector that poses significant risk to the federal enterprise. Under BOD 22-01, Federal Civilian Executive Branch agencies must remediate KEV items by required due dates. CISA urges all organizations to prioritize timely remediation.

🔐 Recorded Future’s Insikt Group reports that 53% of attributed vulnerability exploits in H1 2025 were carried out by state-sponsored actors, driven largely by geopolitical aims such as espionage and surveillance. Chinese-linked groups accounted for the largest share, with UNC5221 exploiting numerous flaws—often in Ivanti products. The study found 161 exploited CVEs, 69% of which required no authentication and 48% were remotely exploitable. It also highlights the rise of social-engineering techniques like ClickFix and increasing EDR-evasion methods used by ransomware actors.

🚨 The Sangoma FreePBX project has issued an advisory for an actively exploited zero-day (CVE-2025-57819) that allows unauthenticated access to the Administrator control panel, enabling arbitrary database manipulation and remote code execution. The flaw stems from insufficiently sanitized user input in the commercial endpoint module and impacts FreePBX 15, 16, and 17 prior to their listed patched releases. Administrators should apply the emergency updates immediately, restrict public ACP access, and scan for indicators of compromise.

🔍 Salt Typhoon, a Chinese state-aligned APT also tracked as Operator Panda/RedMike, is the subject of a joint advisory from intelligence and cybersecurity agencies across 13 countries. The report links the group to Chinese entities tied to the PLA and MSS and documents repeated exploitation of n-day flaws in network edge devices from vendors such as Ivanti, Palo Alto Networks and Cisco. It details persistence via ACL modifications, tunneled proxies, credential capture via RADIUS/TACACS+, and exfiltration over peering and BGP, and urges telecoms to hunt for intrusions, patch quickly and harden management interfaces.

🔒Citrix has released patches for three critical zero-day vulnerabilities in NetScaler ADC and NetScaler Gateway (CVE-2025-7775, CVE-2025-7776, CVE-2025-8424), including pre-auth remote code execution observed in the wild. The vendor provided fixes for affected 14.1, 13.1 and 12.1-FIPS/NDcPP builds and said no workaround is available. Security researchers and CISA urged immediate patching and forensic checks for potential backdoors.

🔒 Citrix has issued patches for three vulnerabilities in NetScaler ADC and NetScaler Gateway, and confirmed active exploitation of CVE-2025-7775. The flaws include two memory overflow issues (CVSS 9.2 and 8.8) that can lead to remote code execution or denial-of-service, and an improper access-control bug (CVSS 8.7) affecting the management interface. Fixes are available in multiple 12.x–14.x releases with no workarounds; Citrix credited external researchers for reporting the issues.