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CVE-2021-35520

20
FAUCET Score

CVE-2021-35520 describes a buffer overflow vulnerability in the Thrift command handlers of IDEMIA Morpho Wave Compact and VisionPass devices prior to version 2.6.2. This flaw allows physically proximate, authenticated attackers to achieve code execution, denial of service, and information disclosure via serial ports. With a CVSS score of 6.2 (Medium), the vulnerability requires high privileges and physical access, but has high impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.2CPE matchmatch criteria
cpe:2.3:o:idemia:morphowave_compact_mdpi_firmware:*:*:*:*:*:*:*:*
< 2.6.2CPE matchmatch criteria
cpe:2.3:o:idemia:morphowave_compact_mdpi-m_firmware:*:*:*:*:*:*:*:*
< 2.6.2CPE matchmatch criteria
cpe:2.3:o:idemia:visionpass_mdpi_firmware:*:*:*:*:*:*:*:*
< 2.6.2CPE matchmatch criteria
cpe:2.3:o:idemia:visionpass_mdpi-m_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.2MEDIUM

CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.3
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 47th percentile among its peer group of 48 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

biometricdevices.idemia.com / s/global-search/0696700000JJa0zAAD
PatchVendor Advisory
biometricdevices.idemia.com / s/global-search/0696700000JJa1nAAD
PatchVendor Advisory
idemia.com
Product