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CVE-2026-6429VulnerabilityPublished Updated

Microsoft · netrc credential leak with reused proxy connection

Affects MicrosoftSource GCVE Database

0

Not known to be exploited · fixed in 7.81.0-1ubuntu1.24 : update Microsoft when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 7.81.0-1ubuntu1.24, 8.5.0-2ubuntu10.9, 8.14.1-2ubuntu1.3 +1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 May 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

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.04 LTScurlpkg:deb/ubuntu/curl?arch=source&distro=resoluteOther threatsAffected
  • <8.18.0-1ubuntu2.1
Fixed in
  • 8.18.0-1ubuntu2.1
Ubuntu 25.10curlpkg:deb/ubuntu/curl?arch=source&distro=questingOther threatsAffected
  • <8.14.1-2ubuntu1.3
Fixed in
  • 8.14.1-2ubuntu1.3
Ubuntu 24.04 LTScurlpkg:deb/ubuntu/curl?arch=source&distro=nobleOther threatsAffected
  • <8.5.0-2ubuntu10.9
Fixed in
  • 8.5.0-2ubuntu10.9
Ubuntu 22.04 LTScurlpkg:deb/ubuntu/curl?arch=source&distro=jammyOther threatsAffected
  • <7.81.0-1ubuntu1.24
Fixed in
  • 7.81.0-1ubuntu1.24
Ubuntu Pro 20.04 LTScurlpkg:deb/ubuntu/curl?arch=source&distro=esm-infra/focalOther threatsAffected
  • 7.65.3-1ubuntu3 – 7.68.0-1ubuntu2.25+esm9
34 affected builds
Fixed in–
Ubuntu Pro 18.04 LTScurlpkg:deb/ubuntu/curl?arch=source&distro=esm-infra/bionicOther threatsAffected
  • 7.55.1-1ubuntu2 – 7.58.0-2ubuntu3.24+esm14
40 affected builds
Fixed in–

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

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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