CVE-2020-11722
CVE-2020-11722 is a critical-severity vulnerability in Dungeon Crawl Stone Soup Project Dungeon Crawl Stone Soup with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 4% (89th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Dungeon Crawl Stone Soup Project Dungeon Crawl Stone Soup
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-11722?
- 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.
- How severe is CVE-2020-11722?
- CVE-2020-11722 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-11722 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11722?
- CVE-2020-11722 affects Dungeon Crawl Stone Soup Project Dungeon Crawl Stone Soup. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-11722?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-11722 published?
- CVE-2020-11722 was published on 2020-04-12 and last updated on 2026-06-17.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00037.html
- https://dpmendenhall.blogspot.com/2020/03/dungeon-crawl-stone-soup.html
- https://github.com/crawl/crawl/commit/768f60da87a3fa0b5561da5ade9309577c176d04
- https://github.com/crawl/crawl/commit/fc522ff6eb1bbb85e3de60c60a45762571e48c28
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QLPN635S7J3MUXLIHYK6MDAHEIASFYP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNXK7QE7EA7XSDDNOWX2A6MJNWOIYCTC/
Affected products (1)
- cpe:2.3:a:dungeon_crawl_stone_soup_project:dungeon_crawl_stone_soup:*:*:*:*:*:*:*:*
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