--- title: Attackers exploiting unpatched Cisco SD-WAN flaw | daily.dev description: Cisco has disclosed an actively exploited high-severity vulnerability (CVE-2026-20245) in Catalyst SD-WAN Manager. The flaw, located in the CLI, allows... canonical: https://daily.dev/posts/attackers-exploiting-unpatched-cisco-sd-wan-flaw-flftxgm0p twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Attackers exploiting unpatched Cisco SD-WAN flaw | daily.dev og:description: Cisco has disclosed an actively exploited high-severity vulnerability (CVE-2026-20245) in Catalyst SD-WAN Manager. The flaw, located in the CLI, allows... og:url: https://daily.dev/posts/attackers-exploiting-unpatched-cisco-sd-wan-flaw-flftxgm0p og:image: https://api.daily.dev/og/posts/flFTxGM0p.png og:image:alt: Attackers exploiting unpatched Cisco SD-WAN flaw og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Attackers exploiting unpatched Cisco SD-WAN flaw **[CSO Online](https://daily.dev/sources/csoonline)** · 3 min read · 0 upvotes · 0 comments ## Summary Cisco has disclosed an actively exploited high-severity vulnerability (CVE-2026-20245) in Catalyst SD-WAN Manager. The flaw, located in the CLI, allows authenticated attackers with netadmin privileges to escalate to root via a crafted file upload enabling command injection. No patch is yet available; Cisco recommends upgrading to the latest version to close previously fixed authentication bypass flaws (CVE-2026-20245, CVE-2026-20127) that could be used to gain the required privileges. The vulnerability was reported by Google's Mandiant and may be linked to the cyberespionage group UAT-8616. Cisco has published indicators of compromise visible in scripts.log, and warns that a software update alone won't remediate already-compromised systems. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Cisco warns of unpatched SD-WAN zero-day exploited in attacks](https://daily.dev/posts/cisco-warns-of-unpatched-sd-wan-zero-day-exploited-in-attacks-y5x7rn4ph) · BleepingComputer · 0 upvotes · 0 comments - [Cisco patches SD-WAN flaw amid evidence of active exploitation](https://daily.dev/posts/cisco-patches-sd-wan-flaw-amid-evidence-of-active-exploitation-yyywuxmf1) · CSO Online · 0 upvotes · 0 comments - [Cisco fixes SD-WAN vManage flaw exploited in zero-day attacks](https://daily.dev/posts/cisco-fixes-sd-wan-vmanage-flaw-exploited-in-zero-day-attacks-haaubkuic) · BleepingComputer · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security) [View this post on daily.dev](https://daily.dev/posts/attackers-exploiting-unpatched-cisco-sd-wan-flaw-flftxgm0p) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Attackers exploiting unpatched Cisco SD-WAN flaw","url":"https://daily.dev/posts/attackers-exploiting-unpatched-cisco-sd-wan-flaw-flftxgm0p","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/attackers-exploiting-unpatched-cisco-sd-wan-flaw-flftxgm0p"},"datePublished":"2026-06-08T21:49:17.939Z","dateModified":"2026-06-08T22:05:06.891Z","description":"Cisco has disclosed an actively exploited high-severity vulnerability (CVE-2026-20245) in Catalyst SD-WAN Manager. 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