CVE-2025-35451: PTZOptics and possibly other ValueHD-based pan-tilt-zoom cameras use hard-coded, default administrative creden

Q: How do I fix CVE-2025-35451?

pt12x-sdi-xx-g2 firmware: upgrade to newer than 6.3.34; pt12x-ndi-xx firmware: upgrade to newer than 6.3.34; pt12x-usb-xx-g2 firmware: upgrade to newer than 6.2.81. Exact commands for each OS are on this page.

Q: Is CVE-2025-35451 being exploited?

CVE-2025-35451 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-2025-35451 affect?

CVE-2025-35451 affects pt12x-sdi-xx-g2 firmware, pt12x-ndi-xx firmware, pt12x-usb-xx-g2 firmware. Severity is critical (CVSS 9.8). PTZOptics and possibly other ValueHD-based pan-tilt-zoom cameras use hard-coded, default administrative credentials. The passwords can readily be cracked. Many cameras have SSH or telnet listening on all interfaces. The passwords cannot be

Q: How urgent is CVE-2025-35451?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE

CVE-2025-35451 is a critical-severity flaw (CVSS 9.8) affecting pt12x-sdi-xx-g2 firmware, pt12x-ndi-xx firmware, pt12x-usb-xx-g2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PTZOptics and possibly other ValueHD-based pan-tilt-zoom cameras use hard-coded, default administrative credentials. The passwords can readily be cracked. Many cameras have SSH or telnet listening on all interfaces. The passwords cannot be changed by the user, nor can the SSH or telnet service be disabled by the user.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-798
Published	2025-09-05
Last modified	2026-06-17

Publisher (CNA): Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · Vendor: ptzoptics

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-05 18:15 UTCPublished CVE record published
2026-06-17 09:14 UTCUpdated Record last modified

ptzoptics pt12x-sdi-xx-g2 firmware UPGRADE

Affected: <= 6.3.34

Fixed in: newer than 6.3.34

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.

ptzoptics pt12x-ndi-xx firmware UPGRADE

Affected: <= 6.3.34

Fixed in: newer than 6.3.34

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.

ptzoptics pt12x-usb-xx-g2 firmware UPGRADE

Affected: <= 6.2.81

Fixed in: newer than 6.2.81

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.

ptzoptics pt20x-sdi-xx-g2 firmware UPGRADE

Affected: <= 6.3.20

Fixed in: newer than 6.3.20

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.

ptzoptics pt20x-ndi-xx firmware UPGRADE

Affected: <= 6.3.20

Fixed in: newer than 6.3.20

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.

ptzoptics pt20x-usb-xx-g2 firmware UPGRADE

Affected: <= 6.2.73

Fixed in: newer than 6.2.73

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.

Exact fixes by distribution

Fedora 46 · pipx · FIXED · 1.18.9-1.fc46 · FEDORA-2026-95305954ab · source

sudo dnf upgrade --advisory=FEDORA-2026-95305954ab

Fedora ELN · libisds · FIXED · 0.11.2-19.eln159 · FEDORA-2026-bf61b68668 · source

sudo dnf upgrade --advisory=FEDORA-2026-bf61b68668

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-2025-35451?

pt12x-sdi-xx-g2 firmware: upgrade to newer than 6.3.34; pt12x-ndi-xx firmware: upgrade to newer than 6.3.34; pt12x-usb-xx-g2 firmware: upgrade to newer than 6.2.81. Exact commands for each OS are on this page.

Is CVE-2025-35451 being exploited?

CVE-2025-35451 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-2025-35451 affect?

CVE-2025-35451 affects pt12x-sdi-xx-g2 firmware, pt12x-ndi-xx firmware, pt12x-usb-xx-g2 firmware. Severity is critical (CVSS 9.8). PTZOptics and possibly other ValueHD-based pan-tilt-zoom cameras use hard-coded, default administrative credentials. The passwords can readily be cracked. Many cameras have SSH or telnet listening on all interfaces. The passwords cannot be

How urgent is CVE-2025-35451?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

Zoom vulnerabilities

Related CVEs

CVE-2025-35452 CRITICAL 9.8 MITIGATE MITIGATE PTZOptics and possibly other ValueHD-based pan-tilt-zoom cameras use default, shared credentials for the admin

References

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