CVE-2026-84445

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 50.1% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-25.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-14 16:11Z1 MO AGO

Last updated

2026-09-14 16:36Z1 MO AGO

Reserved

2026-09-01

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-129Improper Validation of Array IndexVariant
• CWE-248Uncaught ExceptionBase
• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

91bb849e4ddd0ccdeb984f98a373fa02f1d06cb99fd523ca51076ff13191894d

• github.comhttps://github.com/grpc/grpc-go/security/advisories/GHSA-2v4p-qf9q-27wjx_refsource_CONFIRM
• github.comhttps://github.com/grpc/grpc-go/issues/9354x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/pull/9365x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/pull/9366x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/pull/9367x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/commit/3822494d8ea03b992c089fd2a195f041762fffb7x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/commit/8668b69c167df908b6b3666dcbf40992b9e932a4x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/commit/93e31b48545e2a8aaeb6e06b47fb249f94e6297fx_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/releases/tag/v1.82.2x_refsource_MISC
• github.comhttps://github.com/grpc/grpc-go/releases/tag/v1.83.2x_refsource_MISC