CVE-2026-77093
CvFWD Denial of Service
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
INFO
Published Date :
Oct. 13, 2026, 3:17 p.m.
Last Modified :
Oct. 13, 2026, 3:17 p.m.
Remotely Exploit :
No
Source :
050066fd-a2f9-4f32-ab5d-4c53f48bc333
Affected Products
The following products are affected by CVE-2026-77093
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | 050066fd-a2f9-4f32-ab5d-4c53f48bc333 | ||||
| CVSS 4.0 | HIGH | 050066fd-a2f9-4f32-ab5d-4c53f48bc333 |
Solution
- Upgrade all Commvault components to resolved version.
- Apply the latest maintenance release for Commvault.
- Update CommServe, Webserver, and Command Center.
- Update MediaAgents, Clients, and HyperScale nodes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-77093.
| URL | Resource |
|---|---|
| https://documentation.commvault.com/securityadvisories/CV_2026_10_2.html |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-77093 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-77093
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-77093 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-77093 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 050066fd-a2f9-4f32-ab5d-4c53f48bc333
Oct. 13, 2026
Action Type Old Value New Value Added 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 Added CVSS V4.0 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 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/77xxx/CVE-2026-77093.json">CVE-2026-77093</a> Added Reference https://documentation.commvault.com/securityadvisories/CV_2026_10_2.html