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TI-2023-23573 Aliases CVE-2023-43959GHSA-4j94-2784-394x

An issue in YeaLinkSIP-T19P-E2 v.53.84.0.15 allows a remote privileged attacker to…

Priority HIGH 73CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

An issue in YeaLinkSIP-T19P-E2 v.53.84.0.15 allows a remote privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01971 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:yealink:sip-t19p-e2_firmware:53.84.0.15:*:*:*:*:*:*:*53.84.0.15VulnerableYealink
cpe:2.3:h:yealink:sip-t19p-e2:-:*:*:*:*:*:*:*not specified by NVDRunning onYealink
  • cpe:2.3:o:yealink:sip-t19p-e2_firmware:53.84.0.15:*:*:*:*:*:*:* Versions 53.84.0.15 Vulnerable ·Yealink
  • cpe:2.3:h:yealink:sip-t19p-e2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yealink

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-43959
  2. 2026-10-03 Alias added: GHSA-4j94-2784-394x

References

Exploit 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences