9 casos · pág. 1/1
F5 Labs, using Efflux sensor telemetry, found that HTTP requests hitting its sensors rose from 5,125,557 in 2023 to 8,727,820 in 2024 (about 71%, or nearly 95% once normalized for sensor count). Most of the increase came from the BotPoke scanner, which looks for filenames associated with malware distribution sites. It was active mainly in…
F5 Labs, using Efflux sensor telemetry, analyzed December 2025 exploitation of React2Shell (CVE-2025-55182), a CVSS 10.0 unsafe deserialization RCE in React Server Components. It was disclosed on 3 December 2025 and rose to second place among the most exploited CVEs, behind only CVE-2017-9841. Within days of disclosure, actors moved from …
F5 Labs, using attack telemetry from Efflux sensors, reports that CVE-2017-9841 (PHPUnit eval-stdin.php RCE) remained the most targeted vulnerability in May 2025 with over 54,000 instances. CVE-2020-8958 (Guangzhou ONU command injection RCE) shows near-exponential targeting growth for a third consecutive month. CVE-2024-3721 (TBK DVR OS c…
F5 Labs analyzed exploitation of CVE-2026-24423, a CVSS 9.8 unauthenticated remote code execution flaw in SmarterTools SmarterMail (CWE-306). CISA added it to the KEV catalog on February 2, 2026 and notes it has been used in ransomware campaigns. Despite public write-ups, F5 sensors saw only one IP, 193.24.123.58 (ASN 200593, Russian ISP …
F5 Labs, with Efflux sensor telemetry, profiled a persistent information-disclosure scanner operating from 78.153.140.203 in a netblock of AS202306 (HOSTGLOBAL.PLUS LTD), a UK ISP. The IP was first seen on 10 January 2025, vanished on 10 April, and returned on 11 July 2025. It scans 130 unique URLs: 80.23% are variations of /.env, 11.45% …
F5 Labs reports a scanning campaign observed on its Honeynet in March 2026. It recorded 1,897 session-grouped attempts (2,821 raw events) tied to CVE-2018-14028, a WordPress 4.9.7 unrestricted file upload flaw, and the CVE entered the monthly top 10 after being absent in February. Instead of exploiting the upload flaw, the operator probes…
F5 Labs honeynet telemetry shows overall hostile activity rising 55.5% month over month in June 2026, a return to the levels of the earlier-year spike. Highlighted is CVE-2024-44000, an unauthenticated account takeover flaw (CVSS 9.8, CWE-522) in the LiteSpeed Cache WordPress plugin, which rose by 1,128 to 2,603 attacks (8). Scanning is i…
F5 Labs, using attack telemetry from Efflux's global sensor network, analyzed the most exploited vulnerabilities in July 2025 and found that nearly all top-scanned CVEs are HTTP-based RCE or command injection flaws in web interfaces. CVE-2017-9841 (PHPUnit) was the most exploited, followed by CVE-2023-1389 (TP-Link Archer AX21), CVE-2022-…
F5 Labs, using Efflux sensor telemetry, reports on the most exploited CVEs of April 2025 and on internet-wide scanning for SparkRAT command-and-control servers. A single actor, using three IPs in DigitalOcean ASN 14061, sent identical HTTP POST requests to the SparkRAT in-place update endpoint, each IP scanning for about 13 hours and reac…
