CVE-2024-58337 | Akuvox Smart Intercom S539 Improper Access Control via ServicesHTTPAPI

Akuvox Smart Intercom S539 contains an improper access control vulnerability that allows users with 'User' privileges to modify API access settings and configurations. Attackers can exploit this vulnerability to escalate privileges and gain unauthorized access to administrative functionalities.

Published: 2025-12-30 Last update: 2026-01-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2024-58337 is rated Low Risk (37.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.03%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-58337

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-31 0.03%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-58337

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.7 4.0 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:L)
Low privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:H)
High integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:X)
Not defined: no reliable threat intelligence; scoring assumes the worst case (equivalent to Attacked).
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:X)
Not evaluated.
Recovery (supplemental) (R:X)
Not evaluated.
Value density (supplemental) (V:X)
Not evaluated.
Vulnerability response effort (supplemental) (RE:X)
Not evaluated.
Provider urgency (supplemental) (U:X)
Not evaluated.
[email protected]
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 1.4 [email protected]
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 1.4 [email protected]

Weakness enumeration for CVE-2024-58337

Affected software / configurations for CVE-2024-58337

Vendor Product Version Raw CPE
akuvox s539_firmware 912.30.1.137 cpe:2.3:o:akuvox:s539_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox s532_firmware 912.30.1.137 cpe:2.3:o:akuvox:s532_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox x916_firmware 912.30.1.137 cpe:2.3:o:akuvox:x916_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox x915_firmware 912.30.1.137 cpe:2.3:o:akuvox:x915_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox x912_firmware 912.30.1.137 cpe:2.3:o:akuvox:x912_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox r29_firmware 912.30.1.137 cpe:2.3:o:akuvox:r29_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox e16c_firmware 912.30.1.137 cpe:2.3:o:akuvox:e16c_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox r20k-2_firmware 912.30.1.137 cpe:2.3:o:akuvox:r20k-2_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox r20a-2_firmware 912.30.1.137 cpe:2.3:o:akuvox:r20a-2_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox c313w-2_firmware 912.30.1.137 cpe:2.3:o:akuvox:c313w-2_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox ns-2_firmware 912.30.1.137 cpe:2.3:o:akuvox:ns-2_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox nc-2_firmware 912.30.1.137 cpe:2.3:o:akuvox:nc-2_firmware:912.30.1.137:*:*:*:*:*:*:*
akuvox nx-2_firmware 912.30.1.137 cpe:2.3:o:akuvox:nx-2_firmware:912.30.1.137:*:*:*:*:*:*:*

References for CVE-2024-58337

cvelogic Threat Intelligence