CVE-2026-42370: A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2

Q: How do I fix CVE-2026-42370?

gv-vms firmware: upgrade to 21.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-42370 being exploited?

CVE-2026-42370 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-42370 affect?

CVE-2026-42370 affects gv-vms firmware. Severity is critical (CVSS 9.0). A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to

Q: How urgent is CVE-2026-42370?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.0REMOTEUPGRADE

CVE-2026-42370 is a critical-severity flaw (CVSS 9.0) affecting gv-vms firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.0 (Critical)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-787
Published	2026-05-04
Last modified	2026-10-26

Publisher (CNA): GV · Vendor: geovision

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-04 01:16 UTCPublished CVE record published
2026-10-26 20:10 UTCUpdated Record last modified

geovision gv-vms firmware UPGRADE

Affected: < 21.0.0

Fixed in: 21.0.0

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-42370?

gv-vms firmware: upgrade to 21.0.0. Exact commands for each OS are on this page.

Is CVE-2026-42370 being exploited?

CVE-2026-42370 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-42370 affect?

CVE-2026-42370 affects gv-vms firmware. Severity is critical (CVSS 9.0). A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to

How urgent is CVE-2026-42370?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-7372 CRITICAL 9.0 UPGRADE A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2

References

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