CVE-2023-22955

HIGH
7.8
CVSS Score
Published: August 11, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:36 AM UTC
7 products affected across 1 vendor405HD FirmwareC450HD Firmware445HD Firmware

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

An issue was discovered on AudioCodes VoIP desk phones through 3.4.4.1000. The validation of firmware images only consists of simple checksum checks for different firmware components. Thus, by knowing how to calculate and where to store the required checksums for the flasher tool, an attacker is able to store malicious firmware.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 3.4.4.1000
audiocodes-405hd (same device)
v ≤ 3.4.4.1000
audiocodes-445hd (same device)
v ≤ 3.4.4.1000
audiocodes-c450hd (same device)
v < 3.4.4.1000
Affected range stops below 3.4.4.1000, so it looks safe — our inference, not a vendor statement
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-345

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