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CVE-2026-97334
Network messaging layer decompression resource exhaustion
High8.7EPSS 0.36%
- Published
- Updated
- Reserved
- Assigned by
- Commvault
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CommvaultCNA (assigner) | 4.0 | High8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| NVDNVD · Awaiting Analysis | 4.0 | High8.7 | CVSS:4.0/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 |
- EPSS (exploitation in 30 days)
- 0.36% · top 71% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.
Weakness
- CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
- CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) (opens in a new tab)All about CWE-409 and its CVEs
Affected products
- 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
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-97334)Record last updated .