CVE-2021-34572
CVE-2021-34572 is a medium-severity vulnerability in Enbra Ewm with a CVSS 3.x base score of 6.5. 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-345.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 3.3
- EPSS exploit prediction: 0% (12th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-345
- Affected product: Enbra Ewm
- Published:
- Last modified:
Description
Enbra EWM 1.7.29 does not check for or detect replay attacks sent by wireless M-Bus Security mode 5 devices. Instead timestamps of the sensor are replaced by the time of the readout even if the data is a replay of earlier data.
Frequently asked questions
- What is CVE-2021-34572?
- Enbra EWM 1.7.29 does not check for or detect replay attacks sent by wireless M-Bus Security mode 5 devices. Instead timestamps of the sensor are replaced by the time of the readout even if the data is a replay of earlier data.
- How severe is CVE-2021-34572?
- CVE-2021-34572 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2021-34572 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-34572?
- CVE-2021-34572 affects Enbra Ewm. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-34572?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-34572 published?
- CVE-2021-34572 was published on 2021-09-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:enbra:ewm:1.7.29:*:*:*:*:*:*:*
More vulnerabilities in Enbra Ewm
- CVE-2021-34571 — Medium (CVSS 6.5): Multiple Wireless M-Bus devices by Enbra use Hard-coded Credentials in Security mode 5 without an option to change the…
- CVE-2021-34573 — Medium (CVSS 6.2): In Enbra EWM in Version 1.7.29 together with several tested wireless M-Bus Sensors the events backflow and "no flow"…
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