How severe is CVE-2021-35521?

CVE-2021-35521 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-35521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35521?

CVE-2021-35521 primarily affects Idemia Morphowave Compact Mdpi Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-35521?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-35521 published?

CVE-2021-35521 was published on 2021-07-22 and last updated on 2026-06-17.

CVE-2021-35521

CVE-2021-35521 is a medium-severity vulnerability in Idemia Morphowave Compact Mdpi Firmware with a CVSS 3.x base score of 5.9. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.9
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Idemia Morphowave Compact Mdpi Firmware
Published: 2021-07-22
Last modified: 2026-06-17

Description

A path traversal in Thrift command handlers in IDEMIA Morpho Wave Compact and VisionPass devices before 2.6.2 allows remote authenticated attackers to achieve denial of services and information disclosure via TCP/IP packets.

Frequently asked questions

What is CVE-2021-35521?: A path traversal in Thrift command handlers in IDEMIA Morpho Wave Compact and VisionPass devices before 2.6.2 allows remote authenticated attackers to achieve denial of services and information disclosure via TCP/IP packets.
How severe is CVE-2021-35521?: CVE-2021-35521 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-35521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35521?: CVE-2021-35521 primarily affects Idemia Morphowave Compact Mdpi Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-35521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-35521 published?: CVE-2021-35521 was published on 2021-07-22 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:idemia:morphowave_compact_mdpi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:idemia:morphowave_compact_mdpi-m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:idemia:visionpass_mdpi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:idemia:visionpass_mdpi-m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:idemia:visionpass_md_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:idemia:morphowave_compact_md_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Idemia Morphowave Compact Mdpi Firmware

CVE-2021-35522 — Critical (CVSS 9.8): A Buffer Overflow in Thrift command handlers in IDEMIA Morpho Wave Compact and VisionPass devices before 2.6.2, Sigma…
CVE-2021-35520 — Medium (CVSS 6.2): A Buffer Overflow in Thrift command handlers in IDEMIA Morpho Wave Compact and VisionPass devices before 2.6.2 allows…

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