How severe is CVE-2025-29270?

CVE-2025-29270 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-29270 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-29270?

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

Does CVE-2025-29270 have an EU (EUVD) identifier?

Yes. CVE-2025-29270 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37375.

When was CVE-2025-29270 published?

CVE-2025-29270 was published on 2025-10-31 and last updated on 2026-06-17.

CVE-2025-29270

CVE-2025-29270 is a critical-severity vulnerability with a CVSS 3.x base score of 10.0. 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-200.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37375
Weakness: CWE-200
Published: 2025-10-31
Last modified: 2026-06-17

Description

Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows attackers to gain access to the admin panel and complete control of the device.

Frequently asked questions

What is CVE-2025-29270?: Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows attackers to gain access to the admin panel and complete control of the device.
How severe is CVE-2025-29270?: CVE-2025-29270 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-29270 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-29270?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-29270 have an EU (EUVD) identifier?: Yes. CVE-2025-29270 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37375.
When was CVE-2025-29270 published?: CVE-2025-29270 was published on 2025-10-31 and last updated on 2026-06-17.

References

https://blog.byteray.co.uk/shadow-entry-discovery-of-authentication-bypass-vulnerability-in-dse855-communications-device-938e35d4b361

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