What is CVE-2019-20787?

CVE-2019-20787 is a critical-severity vulnerability in Teeworlds, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2020-04-22.

How severe is CVE-2019-20787?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Integer overflow in Teeworlds

CVE-2019-20787

Teeworlds before 0.7.4 has an integer overflow when computing a tilemap size.

Vulnerability class: Integer Overflow

Published 2020-04-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Teeworlds
openSUSE Leap — versions 15.1

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

www.teeworlds.com/forum/viewtopic.php (Release Notes, Vendor Advisory)
lists.opensuse.org/opensuse-security-announce/2020-04/msg00044.html (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2020-04/msg00045.html (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)

Frequently asked questions

What is CVE-2019-20787?: CVE-2019-20787 is a critical-severity vulnerability in Teeworlds, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2020-04-22.
How severe is CVE-2019-20787?: Critical severity. CVSS v3 base score is 9.8 out of 10.