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CVE-2026-4390

A weakness has been identified in TeamSpeak 3 Server up to 3.13.7. This affects the function process_resend_queue of the component Connection State Management. This manipulation causes use after free. The attack may be initiated remotely. Upgrading to version 3.13.8 is able to mitigate this issue. The affected component should be upgraded.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4311cac2a429f0bf68cf30b24a9276983daea71e2d11b5280a711df27bf94133
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":5.5,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":5.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/1/cvssV3_1
cwe · 2 assertions

{"cweId":"CWE-416","description":"Use After Free","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:teamspeak_3_server:teamspeak_3_server:*:*:*:*:*:*:*:*"],"modules":["Connection State Management"],"product":"TeamSpeak 3 Server","vendor":"n/a","versions":[{"status":"affected","version":"3.13.0"},{"status":"affected","version":"3.13.1"},{"status":"affected","version":"3.13.2"},{"status":"affected","version":"3.13.3"},{"status":"affected","version":"3.13.4"},{"status":"affected","version":"3.13.5"},{"status":"affected","version":"3.13.6"},{"status":"affected","version":"3.13.7"},{"status":"unaffected","version":"3.13.8"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":5.5,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:OF/RC:C","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":5.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-416","description":"Use After Free","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/references/3
{"tags":["related"],"url":"https://modzero.com/en/advisories/mz-26-01-teamspeak/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/references/2
{"name":"VDB-366314 | TeamSpeak 3 Server Connection State Management process_resend_queue use after free","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/366314"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/references/0
{"name":"VDB-366314 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/366314/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/references/1
{"tags":["patch"],"url":"https://www.teamspeak.com/en/downloads/#server"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d16b976c9dd1046ef14a282662eb49766a0b5398045c6ed73007ebb7260c41a · sha256:1f9f3ccd3897b945… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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