How severe is CVE-2026-77092?

CVE-2026-77092 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-77092 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-77092?

CVE-2026-77092 affects Commvault. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-77092?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-77092 published?

CVE-2026-77092 was published on 2026-09-08 and last updated on 2026-09-11.

CVE-2026-77092

CVE-2026-77092 is a critical-severity vulnerability in Commvault with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 7.3
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Commvault
Published: 2026-09-08
Last modified: 2026-09-11

Description

Content Extractor contained a deserialization of untrusted data issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update Content Extractor.

Frequently asked questions

What is CVE-2026-77092?: Content Extractor contained a deserialization of untrusted data issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update Content Extractor.
How severe is CVE-2026-77092?: CVE-2026-77092 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-77092 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-77092?: CVE-2026-77092 affects Commvault. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-77092?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-77092 published?: CVE-2026-77092 was published on 2026-09-08 and last updated on 2026-09-11.

References

https://documentation.commvault.com/securityadvisories/CV_2026_07_6.html

Affected products (1)

cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*

More vulnerabilities in Commvault

CVE-2025-34028 — Critical (CVSS 10.0): The Commvault Command Center Innovation Release allows an unauthenticated actor to upload ZIP files that represent…
CVE-2026-77098 — Critical (CVSS 9.8): Private Metrics Server contained an SQL injection condition affecting database operations. Software customers upgrade…
CVE-2026-77089 — Critical (CVSS 9.8): Command Center API contained an authentication bypass issue affecting privilege management. Software customers upgrade…
CVE-2026-13739 — Critical (CVSS 9.8): A legacy endpoint in Command Center contained an unauthenticated server-side request forgery (SSRF) vulnerability…
CVE-2026-13738 — Critical (CVSS 9.8): CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations.…
CVE-2026-13737 — Critical (CVSS 9.8): CommServe contained an allowlist bypass vulnerability affecting command execution authorization. Software customers…

All CVEs affecting Commvault →

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities

CVE-2026-70416 — Critical (CVSS 10.0): Dell ObjectScale, versions prior to 4.4.0.0, contains a Deserialization of Untrusted Data vulnerability. An…
CVE-2026-82222 — Critical (CVSS 10.0): Deserialization of Untrusted Data vulnerability in Liquid Web / StellarWP GiveWP allows Object Injection. This issue…
CVE-2026-69836 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.
CVE-2026-17061 — Critical (CVSS 10.0): A Deserialization of Untrusted Data vulnerability affecting SIMULIA Execution Engine from Release 2023 through Release…
CVE-2026-11756 — Critical (CVSS 10.0): A Deserialization of Untrusted Data vulnerability affecting Station Launcher App in 3DEXPERIENCE platform from Release…
CVE-2026-41104 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Planetary Computer Pro allows an unauthorized attacker to disclose…

Browse all CWE-502 (Deserialization of Untrusted Data) vulnerabilities →