CVE Intelligence
Medium Authentication exploit reference

CVE-2024-58336 — Akuvox Smart Intercom S539 Unauthenticated Video Stream Disclosure

Akuvox Smart Intercom S539 contains an unauthenticated vulnerability that allows remote attackers to access live video streams by requesting the video.cgi endpoint on port 8080. Attackers can retrieve video stream data without authentication by directly accessing the specified endpoint on affected Akuvox doorphone and intercom devices.

Published Dec 30, 2025 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: VulnCheck

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.4% (30-day exploitation probability)+5
  • Technical severity (medium)+3
  • CISA SSVC: exploitation "poc"+5
  • Automatable exploitation (SSVC)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.39%
ahead of 32% of scored CVEs · Oct 14, 2026
Affects
Akuvox
Akuvox Smart Doorphone and 13 more
CVSS base
5.3
Medium · 3 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
Proof of concept
none · proof-of-concept · active
Automatable
Yes
can an attacker script the kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Akuvox Akuvox Smart Doorphone, Akuvox Akuvox Smart Intercom, Akuvox C313w-2 Firmware…).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  4. Search available logs for exploit probes matching the vulnerability class (authentication), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Akuvox Akuvox Smart Doorphone version X912version X915version S539version S532version X916 Vulnerable CVE Program (cve.org) e CISA ADP
Akuvox Akuvox Smart Intercom version NX-2version NC-2version NS-2version C313W-2version R20A-2version R20K-2 Vulnerable CVE Program (cve.org) e CISA ADP
Akuvox C313w-2 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox Nc-2 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox Ns-2 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox Nx-2 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox R20a-2 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox R20k-2 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox R29 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox S532 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox S539 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox X912 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox X915 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database
Akuvox X916 Firmware version 912.30.1.137 Vulnerable NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
8.7 CVSS 4.0 High — — disclosure@vulncheck.com via NIST National Vulnerability Database
8.7 CVSS 4.0 High — — VulnCheck via CVE Program (cve.org) e CISA ADP
5.3 CVSS 3.1 Medium 3.9 1.4 disclosure@vulncheck.com via NIST National Vulnerability Database
5.3 CVSS 3.1 Medium 3.9 1.4 nvd@nist.gov via NIST National Vulnerability Database
5.3 CVSS 3.1 Medium — — VulnCheck via CVE Program (cve.org) e CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N (score shown at the top: disclosure@vulncheck.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-306 · Missing Authentication for Critical Function

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.39%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Review authentication logs: logins without MFA, anomalous sessions and recently created accounts.
web/proxy/WAF logsnetwork IDS/IPSauthentication logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • Affected products added · the akuvox company/akuvox smart doorphone, the akuvox company/akuvox smart intercom
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • SSVC assessment updated
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 13, 2026
  • CVSS changed · 5.3
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • 2025
  • CVE published
    Dec 30, 2025 · VulnCheck

Source activity

Repeated readings are counted rather than listed.

  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

3 on the record

Elsewhere on this site

Akuvox
every CVE for this vendor
Authentication
same class
CWE-306
other pages naming this weakness

Related CVEs (same products)

  • CVE-2024-58337 Akuvox Smart Intercom S539 Improper Access Control via ServicesHTTPAPI Dec 30, 2025

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No fixed version, patch or mitigation documented.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2024-58336 is "Akuvox Smart Intercom S539 Unauthenticated Video Stream Disclosure", rated Medium. It affects Akuvox Smart Doorphone (Akuvox); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.3 describes technical severity. EPSS 0.39% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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