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VulnerabilityPublished Updated

CVE-2026-19720: Inetutils · talkd buffer overflow with long DNS names

Affects inetutilsSource GCVE Database

0

Not known to be exploited.

Data as of 26 Oct 2026, 16:19 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10inetutilspkg:deb/ubuntu/inetutils?arch=source&distro=stonkingOther threatsAffected
  • =2:2.7-2ubuntu1
  • =2:2.8-2ubuntu1
Fixed in–
Ubuntu 26.04 LTSinetutilspkg:deb/ubuntu/inetutils?arch=source&distro=resoluteOther threatsAffected
  • 2:2.6-1ubuntu3 – 2:2.7-2ubuntu1.1
4 affected builds
Fixed in–
Ubuntu 24.04 LTSinetutilspkg:deb/ubuntu/inetutils?arch=source&distro=nobleOther threatsAffected
  • 2:2.4-2ubuntu2 – 2:2.5-3ubuntu4.2
7 affected builds
Fixed in–
Ubuntu Pro 22.04 LTSinetutilspkg:deb/ubuntu/inetutils?arch=source&distro=esm-apps/jammyOther threatsAffected
  • 2:2.0-1 – 2:2.2-2ubuntu0.2+esm1
5 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSinetutilspkg:deb/ubuntu/inetutils?arch=source&distro=esm-apps/focalOther threatsAffected
  • 2:1.9.4-10build1 – 2:1.9.4-11ubuntu0.2+esm4
8 affected builds
Fixed in–
Ubuntu Pro 18.04 LTSinetutilspkg:deb/ubuntu/inetutils?arch=source&distro=esm-apps/bionicOther threatsAffected
  • 2:1.9.4-2build1 – 2:1.9.4-3ubuntu0.1+esm5
7 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

No official fixes or patches are referenced in the provided data. Users should monitor vendor communications for updates and apply patches once available.

Description

CVE-2026-19720 is a buffer overflow vulnerability in the talkd component of inetutils triggered by long DNS names. This flaw could potentially lead to memory corruption when processing overly long DNS names in talkd. The vulnerability affects multiple specific versions of inetutils. No CVSS score is provided, but the severity is assessed as medium based on available information.

References

Community reviews

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