How severe is CVE-2025-70994?

CVE-2025-70994 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2025-70994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-70994?

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

Does CVE-2025-70994 have an EU (EUVD) identifier?

Yes. CVE-2025-70994 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209567.

When was CVE-2025-70994 published?

CVE-2025-70994 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2025-70994

CVE-2025-70994 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. 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-1390.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209567
Weakness: CWE-1390
Published: 2026-04-23
Last modified: 2026-06-17

Description

Yadea T5 Electric Bicycles (models manufactured in/after 2024) have a weak authentication mechanism in their keyless entry system. The system utilizes the EV1527 fixed-code RF protocol without implementing rolling codes or cryptographic challenge-response mechanisms. This is vulnerable to signal forgery after a local attacker intercepts any legitimate key fob transmission, allowing for complete unauthorized vehicle operation via a replay attack.

Frequently asked questions

What is CVE-2025-70994?: Yadea T5 Electric Bicycles (models manufactured in/after 2024) have a weak authentication mechanism in their keyless entry system. The system utilizes the EV1527 fixed-code RF protocol without implementing rolling codes or cryptographic challenge-response mechanisms. This is vulnerable to signal forgery after a local attacker intercepts any legitimate key fob transmission, allowing for complete unauthorized vehicle operation via a replay attack.
How severe is CVE-2025-70994?: CVE-2025-70994 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2025-70994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-70994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-70994 have an EU (EUVD) identifier?: Yes. CVE-2025-70994 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209567.
When was CVE-2025-70994 published?: CVE-2025-70994 was published on 2026-04-23 and last updated on 2026-06-17.

References

Other CWE-1390 vulnerabilities

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CVE-2025-30411 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to improper authentication. The following products are affected: Acronis…
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CVE-2025-40554 — Critical (CVSS 9.8): SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that, if exploited,…
CVE-2025-40552 — Critical (CVSS 9.8): SolarWinds Web Help Desk was found to be susceptible to an authentication bypass vulnerability that if exploited, would…

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