CVE-2026-97334
Network messaging layer decompression resource exhaustion
Description
The network messaging layer contained improper handling of highly compressed data affecting service availability. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe server, Web Server, 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-2026-97334
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 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 050066fd-a2f9-4f32-ab5d-4c53f48bc333 | ||||
| CVSS 4.0 | HIGH | 050066fd-a2f9-4f32-ab5d-4c53f48bc333 |
Solution
- Upgrade all Commvault installations.
- Update CommServe, Web Server, and Command Center.
- Update MediaAgents, clients, and HyperScale.
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-2026-97334.
| URL | Resource |
|---|---|
| https://documentation.commvault.com/securityadvisories/CV_2026_10_3.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-2026-97334 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-2026-97334
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-2026-97334 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-97334 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 The network messaging layer contained improper handling of highly compressed data affecting service availability. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe server, Web Server, Command Center, MediaAgents, clients, and HyperScale. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/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/2026/97xxx/CVE-2026-97334.json">CVE-2026-97334</a> Added Reference https://documentation.commvault.com/securityadvisories/CV_2026_10_3.html -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 13, 2026
Action Type Old Value New Value Added CWE CWE-409 Added SSVC {'id': 'CVE-2026-97334', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-13T14:40:07.536505Z'}