{“lastseen”:”2026-06-06T08:29:32″,”description”:”\\n\\nThe U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity security flaw impacting SolarWinds Serv-U multi-protocol file server software to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation.\\n\\nThe vulnerability, tracked as CVE-2026-28318 (CVSS score: 7.5), is a denial-of-service (DoS) bug that causes the service to crash under certain conditions. CISA described it as an uncontrolled resource consumption vulnerability that results in a DoS condition.\\n\\n\\”SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate,\\” SolarWinds said in an advisory released earlier this week.\\n\\nThe issue has been addressed in SolarWinds Serv-U version 15.5.4 HF1. As mitigations, it’s advised to limit access to known addresses and block any request containing \\”content-encoding\\” since the vulnerable service does not require this functionality.\\n\\nThere are currently no details on how the vulnerability is being exploited in real-world attacks, or who is behind them. It’s also unclear how many internet-exposed Serv-U instances are compromised, if any.\\n\\nCISA has ordered Federal Civilian Executive Branch (FCEB) agencies to address the flaw by June 19, 2026. In the past, multiple flaws in Serv-U have been exploited by bad actors, including those associated with the Cl0p ransomware gang.\\n\\nFound this article interesting? Follow us on Google News, Twitter and LinkedIn to read more exclusive content we post.\\n”,”published”:”2026-06-06T08:14:00″,”modified”:”2026-06-06T08:14:31″,”type”:”thn”,”title”:”CISA Adds Actively Exploited SolarWinds Serv-U DoS Flaw to KEV Catalog”,”source”:””,”references”:””,”id”:”THN:74EB74663A9229D934363355C5927F84″,”bulletinFamily”:”info”,”cwe”:null,”cvelist”:[“CVE-2026-28318″],”sourceData”:””,”sourceHref”:””,”cvss”:{“score”:7.5,”severity”:”HIGH”,”vector”:”CVSS:3.1\/AV:N\/AC:L\/PR:N\/UI:N\/S:U\/C:N\/I:N\/A:H”,”version”:”3.1″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:”https:\/\/thehackernews.com\/2026\/06\/cisa-adds-actively-exploited-solarwinds.html”,”category_name”:”News”,”post_link”:””,”product”:””,”version”:””,”vendor”:””,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:”2026-06-06T08:29:32″,”description”:”\\n\\nThe U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity security flaw impacting SolarWinds Serv-U multi-protocol file server software to its Known Exploited…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[6,8,16,12,15,13,7,11,43,5],"class_list":["post-60562","post","type-post","status-publish","format-standard","hentry","category-category_news","tag-cve","tag-cvss","tag-cvss-75","tag-exploit","tag-high","tag-news","tag-security","tag-tapic","tag-thn","tag-vulnerability"],"yoast_head":"\n