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Public proof of concept

CVE-2021-35336

A public proof of concept exists; no exploitation attested.

  • Published2021-07-01
  • WeaknessCWE-1188

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Tieline IP Audio Gateway 2.6.4.8 and below is affected by Incorrect Access Control. A vulnerability in the Tieline Web Administrative Interface could allow an unauthenticated user to access a sensitive part of the system with a high privileged account.

Timeline

dates in UTC
  1. 2021-07-0113:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-35336?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-35336?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Tieline ip audtio gateway firmwareversion to verify
BranchAffectedFixed in
2.6≤ 2.6.4.8no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-1188read 2026-10-23
  • FIRST EPSSEPSS score10.1 %read 2026-11-02
  • ProjectDiscoverydetectionread 2026-11-02

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-07-01
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-35336?

Tieline IP Audio Gateway 2.6.4.8 and below is affected by Incorrect Access Control. A vulnerability in the Tieline Web Administrative Interface could allow an unauthenticated user to access a sensitive part of the system with a high privileged account.

Is CVE-2021-35336 actively exploited?

Active exploitation of CVE-2021-35336 has not been confirmed. Its EPSS score was 10.1% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-35336?

CVE-2021-35336 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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