CVE-2023-33220 | Stack Buffer Overflow when checking some attributes during retrofit

During the retrofit validation process, the firmware doesn't properly check the boundaries while copying some attributes to check. This allows a stack-based buffer overflow that could lead to a potential Remote Code Execution on the targeted device

Published: 2023-12-15 Last update: 2024-11-21 Assigner: a87f365f-9d39-4848-9b3a-58c7cae69cab Source: a87f365f-9d39-4848-9b3a-58c7cae69cab
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-33220 is rated Moderate Risk (62/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.86%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-33220

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-06 1.29% 0.86% -0.43%
2 2025-11-21 0.35% 1.29% +0.94%
3 2025-11-18 — 0.35% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-33220

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 5.2 a87f365f-9d39-4848-9b3a-58c7cae69cab
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-33220

Affected software / configurations for CVE-2023-33220

Vendor Product Version Raw CPE
idemia sigma_lite_firmware < 4.15.5 cpe:2.3:o:idemia:sigma_lite_firmware:*:*:*:*:*:*:*:*
idemia sigma_lite\+_firmware < 4.15.5 cpe:2.3:o:idemia:sigma_lite\+_firmware:*:*:*:*:*:*:*:*
idemia sigma_extreme_firmware < 4.15.5 cpe:2.3:o:idemia:sigma_extreme_firmware:*:*:*:*:*:*:*:*
idemia sigma_wide_firmware < 4.15.5 cpe:2.3:o:idemia:sigma_wide_firmware:*:*:*:*:*:*:*:*
idemia morphowave_compact_firmware < 2.12.2 cpe:2.3:o:idemia:morphowave_compact_firmware:*:*:*:*:*:*:*:*
idemia morphowave_xp_firmware < 2.12.2 cpe:2.3:o:idemia:morphowave_xp_firmware:*:*:*:*:*:*:*:*
idemia visionpass_firmware < 2.12.2 cpe:2.3:o:idemia:visionpass_firmware:*:*:*:*:*:*:*:*
idemia morphowave_sp_firmware < 1.2.7 cpe:2.3:o:idemia:morphowave_sp_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-33220

cvelogic Threat Intelligence