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CVE-2026-77099— CVFS Command Execution

Quick assessment

Affected
Commvault Commvault Cloud
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CVFS 存在一个影响命令执行的输入验证问题。软件客户应升级到已修复该问题的维护版本。请更新 CVFS。

CVSS 9.3 · Critical EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
Commvault Commvault Cloud 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 affected
Commvault Grid(HSX) CVFS 5.0.1.0≤ 5.0.14.4 affected
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I. Basic Information for CVE-2026-77099

Vulnerability Information
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Vulnerability Title
CVFS Command Execution
Source: CVE Program / CVE List V5
Vulnerability Description
CVFS contained an input validation issue affecting command execution. Software customers upgrade to resolved maintenance release. Update CVFS.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Commvault Commvault Cloud 11.46.0 ~ 11.46.29 -
Commvault Grid(HSX) CVFS 5.0.1.0 ~ 5.0.14.4 -

II. Public POCs for CVE-2026-77099

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III. Intelligence Information for CVE-2026-77099

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Vendor Advisories for CVE-2026-77099 (1)

Same Patch Batch · Commvault · 2026-10-13 · 10 CVEs total

CVE-2026-77100 8.7 HIGH MediaAgent Denial of Service
CVE-2026-77090 8.7 HIGH CVFS Information Disclosure
CVE-2026-97334 8.7 HIGH Network messaging layer decompression resource exhaustion
CVE-2026-77096 7.7 HIGH CVFS Missing Authentication
CVE-2026-77094 7.1 HIGH CvFWD Out-of-Bounds Write
CVE-2026-77093 7.1 HIGH CvFWD Denial of Service
CVE-2026-77095 7.1 HIGH CvFWD Null Pointer Dereference
CVE-2026-18228 7.1 HIGH Hyperscale Path Traversal
CVE-2026-97333 7.1 HIGH QAPI stack-based buffer overflow

IV. Related Vulnerabilities

Same product: Commvault Cloud
Same vendor: Commvault

V. Comments for CVE-2026-77099

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