CVE-2025-41278: Nozomi Networks Labs identified a CWE-125: Out-of-bounds Read in Waterfall WF-500 RX Host in version 7.10.0.0

Q: How do I fix CVE-2025-41278?

wf-500 firmware: upgrade to newer than 7.9.1.0_r2502171040. Exact commands for each OS are on this page.

Q: Is CVE-2025-41278 being exploited?

CVE-2025-41278 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-2025-41278 affect?

CVE-2025-41278 affects wf-500 firmware. Severity is high (CVSS 7.8). Nozomi Networks Labs identified a CWE-125: Out-of-bounds Read in Waterfall WF-500 RX Host in version 7.10.0.0 R2601141040 that allows attackers with access to the TX Host to execute code on the RX Host.

Routine

HIGH 7.8UPGRADE

CVE-2025-41278 is a high-severity flaw (CVSS 7.8) affecting wf-500 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nozomi Networks Labs identified a CWE-125: Out-of-bounds Read in Waterfall WF-500 RX Host in version 7.10.0.0 R2601141040 that allows attackers with access to the TX Host to execute code on the RX Host.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 98%)
CISA exploited list	No
Weakness	CWE-125
Published	2026-05-29
Last modified	2026-07-21

Publisher (CNA): Nozomi Networks Inc. · Vendor: waterfall-security

Last updated 2026-07-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-29 12:16 UTCPublished CVE record published
2026-07-21 12:10 UTCUpdated Record last modified

waterfall-security wf-500 firmware UPGRADE

Affected: <= 7.9.1.0_r2502171040

Fixed in: newer than 7.9.1.0_r2502171040

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-2025-41278?

wf-500 firmware: upgrade to newer than 7.9.1.0_r2502171040. Exact commands for each OS are on this page.

Is CVE-2025-41278 being exploited?

CVE-2025-41278 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-2025-41278 affect?

CVE-2025-41278 affects wf-500 firmware. Severity is high (CVSS 7.8). Nozomi Networks Labs identified a CWE-125: Out-of-bounds Read in Waterfall WF-500 RX Host in version 7.10.0.0 R2601141040 that allows attackers with access to the TX Host to execute code on the RX Host.

How urgent is CVE-2025-41278?

Priority 28/100. High severity

Related CVEs

CVE-2025-41269 CRITICAL 9.8 UPGRADE Nozomi Networks Labs identified a CWE-78: Improper Neutralization of Special Elements used in an OS Command ('
CVE-2025-41270 CRITICAL 9.8 UPGRADE Nozomi Networks Labs identified a CWE-78: Improper Neutralization of Special Elements used in an OS Command ('
CVE-2025-41272 CRITICAL 9.8 UPGRADE Nozomi Networks Labs identified a CWE-78: Improper Neutralization of Special Elements used in an OS Command ('
CVE-2025-41274 CRITICAL 9.8 UPGRADE Nozomi Networks Labs identified a CWE-78: Improper Neutralization of Special Elements used in an OS Command ('
CVE-2025-41275 CRITICAL 9.8 UPGRADE Nozomi Networks Labs identified a CWE-78: Improper Neutralization of Special Elements used in an OS Command ('

References

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