How severe is CVE-2026-67198?

CVE-2026-67198 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-67198 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-67198?

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

When was CVE-2026-67198 published?

CVE-2026-67198 was published on 2026-08-04.

CVE-2026-67198

CVE-2026-67198 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-616.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-616
Published: 2026-08-04
Last modified: 2026-08-04

Description

Perspective 5.0.0 contains a denial-of-service vulnerability in the VirtualServer protocol dispatcher that allows unauthenticated remote attackers to crash the server process by sending malformed or incomplete protobuf messages. Attackers can send well-formed requests such as ViewToArrowReq with no viewport set or MakeTableReq with no data field to trigger unwrap() calls on None values at nine distinct sites, causing the process to abort with SIGABRT.

Frequently asked questions

What is CVE-2026-67198?: Perspective 5.0.0 contains a denial-of-service vulnerability in the VirtualServer protocol dispatcher that allows unauthenticated remote attackers to crash the server process by sending malformed or incomplete protobuf messages. Attackers can send well-formed requests such as ViewToArrowReq with no viewport set or MakeTableReq with no data field to trigger unwrap() calls on None values at nine distinct sites, causing the process to abort with SIGABRT.
How severe is CVE-2026-67198?: CVE-2026-67198 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-67198 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-67198?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-67198 published?: CVE-2026-67198 was published on 2026-08-04.

References

Other CWE-616 vulnerabilities

CVE-2025-67084 — Critical (CVSS 9.9): File upload vulnerability in InvoicePlane through 1.6.3 allows authenticated attackers to upload arbitrary PHP files…
CVE-2024-31601 — Critical (CVSS 9.8): An issue in Beijing Panabit Network Software Co., Ltd Panalog big data analysis platform v. 20240323 and before allows…
CVE-2024-29858 — Critical (CVSS 9.8): In MISP before 2.4.187, __uploadLogo in app/Controller/OrganisationsController.php does not properly check for a valid…
CVE-2024-52305 — Medium (CVSS 6.5): UnoPim is an open-source Product Information Management (PIM) system built on the Laravel framework. A vulnerability…
CVE-2025-59402 — Medium (CVSS 5.4): Flock Safety Bravo Edge AI Compute Device BRAVO_00.00_local_20241017 accepts the default Thundercomm TurboX 6490…
CVE-2025-52130 — Medium (CVSS 5.4): File upload vulnerability in WebErpMesv2 1.17 in the app/Http/Controllers/FactoryController.php controller. This flaw…

Browse all CWE-616 vulnerabilities →