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Fencer Vulns
medium 4.1

CVE-2025-43929 json

open_actions.py in kitty before 0.41.0 does not ask for user confirmation before running a local executable file that may have been linked…

published 2025-04-20 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-14660

cvss
4.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

open_actions.py in kitty before 0.41.0 does not ask for user confirmation before running a local executable file that may have been linked from an untrusted document (e.g., a document opened in KDE ghostwriter).

Patch / fix

  • kitty project kitty 0.41.0
  • kitty Debian 14, Debian 13 0.41.1-1

debian advisories DEBIAN-CVE-2025-43929

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-43929 updated cvss 4.1

kitty: Kitty Unconfirmed Local Executable Execution

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • hitman.services https://hitman.services/cve-2025-43929/ referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/0xBenCantCode/CVE-2025-43929 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • kitty project kitty

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.