Security Resilience

CVE-2023-53983

Exposed Creds in Ateme Flamingo Xl Firmware 3.2.9 … 3.6.20

Public PoCExposed Creds
Published
30 December 2025
Modified
24 September 2026
Patch / advisory
CVSS Score v4 9.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0065 50th percentile
Risk Priority 46 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-2023-53983 is a critical-severity Use of Hard-coded Credentials (CWE-798) vulnerability in Ateme Flamingo Xl Firmware. Its CVSS base score is 9.3 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Credentials In Files (T1552.001); ranked at the 50th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to IA-5 (Authenticator Management) and SC-12 (Cryptographic Key Establishment and Management) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-53983 is a critical vulnerability in Anevia Flamingo XL/XS version 3.6.20, stemming from weak default administrative credentials that are hard-coded and easily guessable, classified under CWE-798 (Use of Hard-coded Credentials). This flaw allows attackers to bypass authentication mechanisms entirely. The vulnerability received a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for complete compromise.

Remote attackers require no privileges, special access, or user interaction to exploit this issue over the network with low complexity. Successful exploitation grants full remote system control, enabling unauthorized access to confidential data, modification of system integrity, and disruption of availability.

Advisories detailing mitigation are available in references such as the VulnCheck advisory (https://www.vulncheck.com/advisories/anevia-flamingo-xlxs-default-credentials-authentication-bypass), Packet Storm report (https://packetstormsecurity.com/files/172875/Anevia-Flamingo-XL-XS-3.6.x-Default-Hardcoded-Credentials.html), CXSecurity (https://cxsecurity.com/issue/WLB-2023060019), IBM X-Force Exchange (https://exchange.xforce.ibmcloud.com/vulnerabilities/259059), and the vendor site (https://www.ateme.com/). Practitioners should consult these for patch availability or credential change guidance.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Anevia Flamingo XL/XS 3.6.20 contains a critical vulnerability with weak default administrative credentials that can be easily guessed. Attackers can leverage these hard-coded credentials to gain full remote system control without complex authentication mechanisms.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
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.
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.
T1016.001 Internet Connection Discovery Discovery
Adversaries may check for Internet connectivity on compromised systems.
T1016.002 Wi-Fi Discovery Discovery
Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-36252Same product: Ateme Flamingo Xl
CVE-2024-58338Same product: Ateme Flamingo Xl
CVE-2023-41612Shared CWE-798
CVE-2026-85422Shared CWE-798
CVE-2024-29963Shared CWE-798
CVE-2025-14115Shared CWE-798
CVE-2024-48192Shared CWE-798
CVE-2023-22344Shared CWE-798
CVE-2024-38480Shared CWE-798
CVE-2026-18931Shared CWE-798

Affected Assets

ateme
flamingo xl firmware
3.2.9, 3.6.20
ateme
flamingo xs firmware
3.2.9, 3.6.20
ateme
soaplive
2.0.3, 2.4.1
ateme
soapsystem
1.3.1

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Authenticator management requires secure distribution and handling of credentials, structurally discouraging hard-coded values.

Cryptographic key management mandates proper establishment and handling instead of embedding keys in code.

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-01 partial match
blocks

PR.AA-01's credential/key-management processes can reduce the incentive to embed secrets but do not address or detect hard-coded values in source code, so the weakness remains fully possible.

PR.AA-02 none match
blocks

PR.AA-02 addresses human identity proofing and per-person credential issuance at enrollment; it has no bearing on whether developers embed static credentials in software.

PR.DS-01 none match
blocks

PR.DS-01 addresses encryption and integrity of stored data but never touches credential or key management practices, so it neither prevents hard-coded credentials nor removes any of their risk.

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.

removes
removes
removes
removes
blocks

Education on secure configuration practices discourages technical staff from embedding or relying on hard-coded credentials in systems and applications.

References