--- title: "CVE-2026-77093: Commvault CvFWD - Denial of Service" description: "Commvault CvFWD contains an integer overflow causing service availability issues, letting attackers cause denial of service, exploit requires no special privileges." url: https://panop.io/threat-heartbeat/CVE-2026-77093/ --- # CVE-2026-77093 Commvault CvFWD - Denial of Service Commvault CvFWD contains an integer overflow causing service availability issues, letting attackers cause denial of service, exploit requires no special privileges. CVSS base score 7.1 /10 High CISA KEV Not listed Public exploit None known Authentication Required EPSS 0.23% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-77093) ## Details Type Denial of Service Impact Denial Of Service CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Published 13 October 2026 Updated 15 October 2026 Weakness [CWE-190](https://cwe.mitre.org/data/definitions/190.html) ## Vendor fix Update all Commvault installations to the latest maintenance release. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-77093](https://nvd.nist.gov/vuln/detail/CVE-2026-77093) - [https://documentation.commvault.com/securityadvisories/CV\_2026\_10\_2.html](https://documentation.commvault.com/securityadvisories/CV_2026_10_2.html) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)