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CVE-2023-33222

28
FAUCET Score

CVE-2023-33222 is a critical stack-based buffer overflow vulnerability affecting Idemia products when handling contactless cards. It arises from a function that fails to perform boundary checks on received data during card reading. This flaw allows for unauthenticated remote code execution with high impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8. While there is no known active exploitation or public exploit code, the vulnerability has garnered some community discussion, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.15.5CPE matchmatch criteria
cpe:2.3:o:idemia:sigma_lite_firmware:*:*:*:*:*:*:*:*
< 4.15.5CPE matchmatch criteria
cpe:2.3:o:idemia:sigma_lite\+_firmware:*:*:*:*:*:*:*:*
< 4.15.5CPE matchmatch criteria
cpe:2.3:o:idemia:sigma_extreme_firmware:*:*:*:*:*:*:*:*
< 4.15.5CPE matchmatch criteria
cpe:2.3:o:idemia:sigma_wide_firmware:*:*:*:*:*:*:*:*
< 2.12.2CPE matchmatch criteria
cpe:2.3:o:idemia:morphowave_compact_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.29%
Probability of exploitation in next 30 days
EPSS Percentile
67.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0129 is in the 54th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

idemia.com / wp-content/uploads/2023/11/Security-Advisory-SA-2023-05-2.pdf
Vendor Advisory