# CVE-2026-121640

> As of 2026-11-06, CVE-2026-121640 is a vulnerability. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-121640, most recently “Multi-vendor vulnerability roundup: Node2Shell Brotli RCE (CVE-2026-111497, actively exploited, CISA KEV), WatchGuard CVE-2026-98432 (CVSS 9.8) and AuthPoint Gateway flaws, Cisco UCS Central CVE-2026-76506, SonicWall GMS CVE-2026-109593/109594 unpatched (EOL)”.

**Last updated:** 2026-11-06

## What is CVE-2026-121640?

CVE-2026-121640 vulnerability details.

No weakness class, CVSS vector or affected-product list has been recorded for CVE-2026-121640 beyond the description above.

## Severity and exploitation probability

- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog

## Is CVE-2026-121640 being exploited?

It currently carries a trending score of 5 in the Threadlinqs vulnerability feed.

## Affected products and versions

No affected-product or package list has been recorded for CVE-2026-121640 in the tracked sources. The vendor advisory and the references below are the authoritative statement of what is affected.

## How to fix CVE-2026-121640

No vendor patch reference has been recorded for CVE-2026-121640 in the tracked sources. Watch the CNA record and the vendor advisory channel for a fix, and treat any affected deployment as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-121640

1 tracked threat in the Threadlinqs corpus references CVE-2026-121640, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Multi-vendor vulnerability roundup: Node2Shell Brotli RCE (CVE-2026-111497, actively exploited, CISA KEV), WatchGuard CVE-2026-98432 (CVSS 9.8) and AuthPoint Gateway flaws, Cisco UCS Central CVE-2026-76506, SonicWall GMS CVE-2026-109593/109594 unpatched (EOL)](https://intel.threadlinqs.com/threat/TL-2026-5372) — CRITICAL · 2026-11-06

## Sources

Seeded from `threat-derived` and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

No external references are recorded on this row.

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-121640
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