Security Resilience

CVE-2023-3050

Tmtmakine Lockcell Firmware ≤ 15.0

Public PoC
Published
13 June 2023
Modified
22 May 2026
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.013 70th percentile
Risk Priority 74 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-3050 is a critical-severity Reliance on Cookies without Validation and Integrity Checking in a Security Decision (CWE-784) vulnerability in Tmtmakine Lockcell Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 30% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A08:2025 Software or Data Integrity Failures

EU & UK References

Vulnerability Data

Reliance on Cookies without Validation and Integrity Checking in a Security Decision vulnerability in TMT Lockcell allows Privilege Abuse, Authentication Bypass. This issue affects Lockcell: before 15.

CWE(s)
CWE-784CWE-565

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-3048Same product: Tmtmakine Lockcell
CVE-2023-3049Same product: Tmtmakine Lockcell
CVE-2023-3047Same product: Tmtmakine Lockcell
CVE-2024-9820Shared CWE-565, CWE-784
CVE-2026-60134Shared CWE-784
CVE-2026-75757Shared CWE-565
CVE-2023-35885Shared CWE-565
CVE-2023-32612Shared CWE-565
CVE-2024-22186Shared CWE-565
CVE-2024-0947Shared CWE-565

Affected Assets

tmtmakine
lockcell firmware
≤ 15.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.3.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 partial match
blocks

Strong authentication policies and mechanisms directly prevent reliance on unvalidated cookies for identity decisions.

PR.AA-04 partial match
blocks

Verifying identity assertions explicitly requires integrity and validity checks that eliminate untrusted cookie usage.

PR.AA-05 partial match
blocks

Enforcing authorization policies ensures access decisions are not based solely on unvalidated client-side cookies.

PR.DS-01 partial match
blocks

Integrity protections for data-at-rest can apply to cookie stores but do not cover validation during use.

PR.DS-02 partial match
blocks

Integrity protection for data-in-transit can help safeguard cookie values but does not address server-side validation logic.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.27 Learning from information security incidents partial match
removes
A.8.26 Application security requirements partial match
blocks

A.8.26 requires identifying and specifying requirements (including resilience against SQLi, input validation, access segregation, and cryptography per 8.24) that can address cookie-based security decisions, but this is only a minority slice of the weakness class as it depends on downstream implementation of those requirements rather than directly preventing exploitation.

A.8.27 Secure system architecture and engineering principles partial match
removes
A.8.28 Secure coding partial match
prevents

Secure coding practices require integrity checks on security-critical cookies used for decisions.

A.8.29 Security testing in development and acceptance partial match
finds

Security testing can detect missing cookie validation but does not prevent the weakness by itself.

A.8.3 Information access restriction partial match
blocks

Information access restriction requires proper validation of identity tokens before granting access.

References