Skip to content
Fencer Intel
critical 9.8

CVE-2020-11722 json

Dungeon Crawl Stone Soup (aka DCSS or crawl) before 0.25 allows remote attackers to execute arbitrary code via Lua bytecode embedded in an…

published 6y ago modified 4mo ago also EUVD-2020-4064

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Dungeon Crawl Stone Soup (aka DCSS or crawl) before 0.25 allows remote attackers to execute arbitrary code via Lua bytecode embedded in an uploaded .crawlrc file.

Patch / fix

  • dungeon_crawl_stone_soup_project dungeon_crawl_stone_soup 0.25
  • crawl Debian 14, Debian 13, Debian 12 2:0.25.0-1

debian advisories DEBIAN-CVE-2020-11722

  • crawl Ubuntu Pro 16.04 LTS 2:0.17.1-1ubuntu0.1~esm1
  • crawl Ubuntu Pro 18.04 LTS 2:0.21.1-1ubuntu0.1~esm1
  • crawl Ubuntu Pro 20.04 LTS 2:0.24.0-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2020-11722

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • crawl openSUSE Tumbleweed 0.26.1-1.2
  • crawl Package Hub 15 SP1, openSUSE Leap 15.1 0.24.0-bp151.4.3.2

opensuse advisories openSUSE-SU-2024:10698-1openSUSE-SU-2020:0549-1

Is CVE-2020-11722 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2020-11722 updated cvss 9.8

crawl: a remote attacker may execute arbitrary code via Lua bytecode

  • 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

Exploit prediction

3.89% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type

References

Sources

Fencer Intel 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.