What is CVE-2020-14409?

CVE-2020-14409 is a high-severity vulnerability in Libsdl Simple Directmedia Layer, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-01-19.

How severe is CVE-2020-14409?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2020-14409 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Libsdl Simple Directmedia Layer

CVE-2020-14409

SDL (Simple DirectMedia Layer) through 2.0.12 has an Integer Overflow (and resultant SDL_memcpy heap corruption) in SDL_BlitCopy in video/SDL_blit_copy.c via a crafted .BMP file.

Vulnerability class: Integer Overflow

Published 2021-01-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.9th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000

Affected products

Libsdl Simple Directmedia Layer
Starwindsoftware Starwind Virtual San — versions v8
Debian Linux — versions 9.0
Fedoraproject Fedora — versions 33

Weakness classification (CWE)

Public proof-of-concept exploits

References

bugzilla.libsdl.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
hg.libsdl.org/SDL/rev/3f9b4e92c1d9 (Patch, Vendor Advisory)
lists.debian.org/debian-lts-announce/2021/01/msg00024.html (mailing-list, Mailing List, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
security.gentoo.org/glsa/202107-55 (vendor-advisory, Third Party Advisory)
www.starwindsoftware.com/security/sw-20210325-0001/ (Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/02/msg00008.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-14409?: CVE-2020-14409 is a high-severity vulnerability in Libsdl Simple Directmedia Layer, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-01-19.
How severe is CVE-2020-14409?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-14409 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.