Cyber 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 68th percentile
Risk Priority 74 floored blend · peak EPSS

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 Web Session Cookie (T1550.004); ranked in the top 32% 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

T1550.004 Web Session Cookie Lateral Movement
Adversaries can use stolen session cookies to authenticate to web applications and services.
attack.mitre.org →
T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
T1550 Use Alternate Authentication Material Lateral Movement
Adversaries may use alternate authentication material, such as password hashes, Kerberos tickets, and application access tokens, in order to move laterally within an environment and bypass normal system access controls.
attack.mitre.org →
T1606 Forge Web Credentials Credential Access
Adversaries may forge credential materials that can be used to gain access to web applications or Internet services.
attack.mitre.org →
T1606.001 Web Cookies Credential Access
Adversaries may forge web cookies that can be used to gain access to web applications or Internet services.
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-2024-21872Shared CWE-565
CVE-2026-5130Shared CWE-565
CVE-2024-9970Shared CWE-565
CVE-2025-31120Shared CWE-565
CVE-2025-2395Shared 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-04 full match
prevents

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

PR.AA-03 mostly match
prevents

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

PR.DS-02 mostly match
prevents

Cryptographic integrity for data-in-transit directly mitigates tampering of cookies sent over the network.

PR.AA-05 partial match
prevents

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

PR.DS-01 partial match
prevents

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

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.8.29 Security testing in development and acceptance mostly match
finds

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

A.8.3 Information access restriction mostly match
prevents

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

A.8.5 Secure authentication mostly match
prevents

Secure authentication mandates validation of session tokens, directly addressing reliance on unverified cookies.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify cookie validation but do not mandate implementation details.

A.8.28 Secure coding partial match
prevents

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

References