CVE-2026-77093CvFWD Denial of Service

7.1HighCVSS base score
0.23%Exploitation in 30 daysEPSS · top 87% of all CVEs
NoKnown exploitednot in CISA's KEV catalog
NonePublic exploitsnone known yet

Description

CvFWD contained an integer overflow affecting service availability. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe, Webserver, Command Center, MediaAgents, Clients and HyperScale

Timeline

2026
20 Aug 2026
20 Aug 2026
ID reserved
By Commvault
13 Oct 202654 days later
13 Oct 2026· 54 days later
Published
14 Oct 20261 day later
14 Oct 2026· 1 day later
Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-77093, by who scored it
Scored by	CVSS	Score	Vector
CommvaultCNA (assigner)	4.0	High7.1	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
NVDNVD · Awaiting Analysis	4.0	High7.1	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

EPSS (exploitation in 30 days): 0.23% · top 87% of all CVEs (13 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Affected products

Commvault · Commvault Cloud
- affected 11.46.0 – ≤ 11.46.29
- affected 11.44.0 – ≤ 11.44.24
- affected 11.40.0 – ≤ 11.40.77
- affected 11.36.0 – ≤ 11.36.126

References1

https://documentation.commvault.com/securityadvisories/CV_2026_10_2.html (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-77093](https://cveledger.app/badge/CVE-2026-77093.svg)](https://cveledger.app/cve/CVE-2026-77093)

Record last updated 14 Oct 2026, 18:54 UTC.