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VulnerabilityPublished

CVE-2026-110935: The PFI plugin framework deployment routine does not validate path components when extracting

Source GCVE Database

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Authoritative record:CVE-2026-110935· High 8.6

Not known to be exploited · CVSS 8.6 High : upgrade to 2026.6 soon.

Data as of 4 Nov 2026, 15:28 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (CERTVDE)CVSS 4.08.6
CNA (CERTVDE)CVSS 3.18.4
Patch
Available – fixed in 2026.6
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 4 Nov 2026.

What to do

Upgrade PLCnext Engineer to 2026.6.

Affected software

ProductAffectedFixed in
Phoenix ContactPLCnext EngineerAffected
  • <2026.6
Fixed in
  • 2026.6

AI-suggested

If you cannot patch yet, restrict local access to trusted users only to mitigate risk from unauthenticated local attackers.

Description

CVE-2026-110935 is a vulnerability in the PFI plugin framework deployment routine where path components are not properly validated during archive extraction. This allows an unauthenticated local attacker to write files outside the intended plugin repository by using relative path segments like '..'. Exploitation can lead to full system compromise with the permissions of the current user.

References

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