Cyber Resilience

CVE-2022-50695

HighPublic PoCDDoS

Published: 30 December 2025

Published
30 December 2025
Modified
16 January 2026
KEV Added
Patch
CVSS Score v4 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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 0.0074 49.8th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2022-50695 is a high-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in Sound4 Impact Firmware. Its CVSS base score is 8.7 (High).

Operationally, ranked at the 49.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

SOUND4 IMPACT/FIRST/PULSE/Eco versions 2.x contains a network vulnerability that allows unauthenticated attackers to send ICMP signals to arbitrary hosts through network command scripts. Attackers can abuse ping.php, traceroute.php, and dns.php to generate network flooding attacks targeting external hosts.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-53963Same product: Sound4 Big Voice2
CVE-2022-50792Same product: Sound4 Big Voice2
CVE-2022-50794Same product: Sound4 Big Voice2
CVE-2022-50796Same product: Sound4 Big Voice2
CVE-2022-50791Same product: Sound4 Big Voice2
CVE-2023-53962Same product: Sound4 Big Voice2
CVE-2023-53964Same product: Sound4 Big Voice2
CVE-2022-50795Same product: Sound4 Big Voice2
CVE-2023-53955Same product: Sound4 Big Voice2
CVE-2023-53960Same product: Sound4 Big Voice2

Affected Assets

sound4
impact firmware
1.69, 2.15
sound4
pulse firmware
1.69, 2.15
sound4
first firmware
1.69, 2.15
sound4
impact eco firmware
1.16
sound4
pulse eco firmware
1.16
sound4
big voice4 firmware
1.2
sound4
big voice2 firmware
1.30
sound4
wm2 firmware
1.11
sound4
stream extension
2.4.29

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-770

This control implements explicit throttling on session allocation, addressing the weakness of allocating resources without limits.

addresses: CWE-770

Plan testing exercises resource allocation limits and throttling during simulated failures, directly addressing weaknesses that allow unbounded resource use.

addresses: CWE-770

Contingency plan updates ensure recovery strategies address unbounded resource allocation, making it harder for attackers to exploit lack of throttling to cause prolonged outages.

addresses: CWE-770

Provides continuity when unbounded resource allocation at the primary site leads to exhaustion and downtime.

addresses: CWE-770

Alternate services allow operations to continue when primary allocation of resources lacks limits or throttling.

addresses: CWE-770

Explicit planning of security-related actions requires defining limits, windows, and resource allocations, making allocation without throttling far less likely.

addresses: CWE-770

Measures of performance include tracking allocation behavior and throttling effectiveness, reducing the window for resource exhaustion attacks.

addresses: CWE-770

Imposes an inactivity-based limit on network resource allocation, throttling the number of concurrently held connections.

References