How severe is CVE-2026-70403?

CVE-2026-70403 has a CVSS 3.x base score of 9.8, 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-2026-70403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-70403?

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.

When was CVE-2026-70403 published?

CVE-2026-70403 was published on 2026-09-04 and last updated on 2026-09-08.

CVE-2026-70403

CVE-2026-70403 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-259.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-259
Published: 2026-09-04
Last modified: 2026-09-08

Description

XING CPTrans-ME-X contains a Use of Hard-coded Password (CWE-259). Anyone with the knowledge of the credential may log in to the affected device.

Frequently asked questions

What is CVE-2026-70403?: XING CPTrans-ME-X contains a Use of Hard-coded Password (CWE-259). Anyone with the knowledge of the credential may log in to the affected device.
How severe is CVE-2026-70403?: CVE-2026-70403 has a CVSS 3.x base score of 9.8, 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-2026-70403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-70403?: 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.
When was CVE-2026-70403 published?: CVE-2026-70403 was published on 2026-09-04 and last updated on 2026-09-08.

References

Other CWE-259 vulnerabilities

CVE-2024-32741 — Critical (CVSS 10.0): A vulnerability has been identified in SIMATIC CN 4100 (All versions < V3.0). The affected device contains hard coded…
CVE-2014-2363 — Critical (CVSS 10.0): Morpho Itemiser 3 8.17 has hardcoded administrative credentials, which makes it easier for remote attackers to obtain…
CVE-2012-5862 — Critical (CVSS 10.0): These Sinapsi devices store hard-coded passwords in the PHP file of the device. By using the hard-coded passwords in…
CVE-2025-20286 — Critical (CVSS 9.9): A vulnerability in Amazon Web Services (AWS), Microsoft Azure, and Oracle Cloud Infrastructure (OCI) cloud deployments…
CVE-2026-35905 — Critical (CVSS 9.8): T3 Technology CPE models T625Pro v1.0.07, T6825G v1.0.03, and T7281 v1.0.03 were discovered to contain a hardcoded…
CVE-2026-7251 — Critical (CVSS 9.8): Eppendorf BioFlo 320 is vulnerable due to VNC server using a hard-coded password. If a remote attacker knows the…

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