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CVE Vulnerability Details :
CVE-2026-4391
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-27 May, 2026 | 16:45
Updated At-27 May, 2026 | 18:46
Rejected At-
▼CVE Numbering Authority (CNA)
TeamSpeak 3 Server ECC Key heap-based overflow

A security vulnerability has been detected in TeamSpeak 3 Server up to 3.13.7. This vulnerability affects unknown code of the component ECC Key Parser. Such manipulation leads to heap-based buffer overflow. The attack may be launched remotely. Upgrading to version 3.13.8 is able to resolve this issue. It is suggested to upgrade the affected component.

Affected Products
Vendor
n/a
Product
TeamSpeak 3 Server
CPEs
  • cpe:2.3:a:teamspeak_3_server:teamspeak_3_server:*:*:*:*:*:*:*:*
Modules
  • ECC Key Parser
Versions
Affected
  • 3.13.0
  • 3.13.1
  • 3.13.2
  • 3.13.3
  • 3.13.4
  • 3.13.5
  • 3.13.6
  • 3.13.7
Unaffected
  • 3.13.8
Problem Types
TypeCWE IDDescription
CWECWE-122Heap-based Buffer Overflow
CWECWE-119Memory Corruption
Type: CWE
CWE ID: CWE-122
Description: Heap-based Buffer Overflow
Type: CWE
CWE ID: CWE-119
Description: Memory Corruption
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
3.05.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
2.05.0N/A
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
Version: 3.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
Version: 2.0
Base score: 5.0
Base severity: N/A
Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Michael Imfeld (modzero)
Timeline
EventDate
Advisory disclosed2026-05-27 00:00:00
VulDB entry created2026-05-27 02:00:00
VulDB entry last update2026-05-27 18:26:06
Event: Advisory disclosed
Date: 2026-05-27 00:00:00
Event: VulDB entry created
Date: 2026-05-27 02:00:00
Event: VulDB entry last update
Date: 2026-05-27 18:26:06
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/366315
vdb-entry
https://vuldb.com/vuln/366315/cti
signature
permissions-required
https://modzero.com/en/advisories/mz-26-01-teamspeak/
related
https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html
related
https://www.teamspeak.com/en/downloads/#server
patch
Hyperlink: https://vuldb.com/vuln/366315
Resource:
vdb-entry
Hyperlink: https://vuldb.com/vuln/366315/cti
Resource:
signature
permissions-required
Hyperlink: https://modzero.com/en/advisories/mz-26-01-teamspeak/
Resource:
related
Hyperlink: https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html
Resource:
related
Hyperlink: https://www.teamspeak.com/en/downloads/#server
Resource:
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found