CISA KEV adds six actively exploited flaws
CISA added six actively exploited vulnerabilities—spanning Cisco, Barracuda, Openwave, Microsoft Outlook and Chromium—to its KEV catalog, mandating federal remediation.
Sourcecisa.gov — open the original
What to check
- Applies to
- The 6 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- CISA lists CVE-2026-111560, CVE-2026-111793, CVE-2026-116606, CVE-2026-124194, CVE-2026-125350, and CVE-2026-20320 as exploited in the wild.
CISA's Known Exploited Vulnerabilities (KEV) Catalog update adds six CVEs with confirmed evidence of in-the-wild exploitation, spanning network security appliances, messaging infrastructure, email gateways, Microsoft Outlook, and the Chromium browser engine. Affected vendors include Cisco (BroadWorks XXE), Barracuda Networks (an OS command injection across multiple products and an ESG authentication bypass), Openwave Messaging (Webtop Media Transcoder resource transfer flaw), Microsoft (Outlook missing user-interaction check), and Google (Chromium use-after-free). These product categories — VoIP/unified communications platforms, email security gateways, and widely deployed client/browser software — are common targets for both opportunistic and targeted intrusion activity given their internet-facing or high-privilege nature.
Under Binding Operational Directive (BOD) 26-04, FCEB agencies must prioritize remediation of KEV-listed vulnerabilities on publicly exposed assets, especially those granting full post-exploitation control, and must assess whether compromise occurred prior to patching. While BOD 26-04 is binding only on federal civilian agencies, CISA recommends all organizations using any of the affected products — Cisco BroadWorks, Barracuda ESG and other Barracuda products, Openwave Webtop, Microsoft Outlook, and Chromium-based browsers — apply vendor patches immediately and review logs for signs of prior exploitation given active attacker use.
No single vendor advisory detail, exploit chain, or threat actor attribution is provided in this bulletin; it is a catalog update notice. Defenders should consult the individual CVE records and vendor advisories for patch versions, exploitation indicators, and mitigation guidance, and treat internet-facing instances of the Barracuda and Openwave products as high priority given the authentication-bypass and command-injection impact.
Mentioned in this report
Source reporting: https://www.cisa.gov/news-events/alerts/2026/11/10/cisa-adds-six-known-exploited-vulnerabilities-catalog
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