Vulnerability · CVE-2026-77093
CvFWD contained an integer overflow affecting service availability.
Published Oct 13, 2026 · catalog updated Oct 14, 2026 · CvFWD contained an integer
Check if you run it
No confirmed exploitation is on record for CVE-2026-77093. EPSS is 0.23%. Act only if a listed version of CvFWD contained an integer is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (CvFWD contained an integer).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.23%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
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
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-77093
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-77093. EPSS is 0.23%. Act only if a listed version of CvFWD contained an integer is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-190: Integer Overflow. EPSS 0.23%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 13, 2026 · NIST NVD
Detected
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
Oct 14, 2026 · NIST NVD
Updated
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
Oct 14, 2026 · NIST NVD
Updated
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
Sources
- CVE.orgVulnerability recordCVE-2026-77093
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-77093
30-day exploitation probability 0.2%
first.org - NIST NVDVulnerability recordCVE-2026-77093
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
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.