9.6

CVE-2020-15999: Google Chrome FreeType Heap Buffer Overflow Vulnerability

KEV
Analyzed
AliasesALPINE-CVE-2020-15999MGASA-2020-0389SUSE-SU-2020:2995-1
Published 03-11-2020Last modified 21-10-2025

Vulnerability summary

CVE-2020-15999 is a critical (CVSS 9.6) Out-of-bounds Write vulnerability in Google Chrome FreeType. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 63.89% chance of exploitation in the next 30 days, higher than 99.2% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Act nowlisted as exploited

Listed as exploited by CISA (03-11-2021)

Source freshness unavailable

How is this decided?
CVSS score
9.6/10
010
Critical · v3.1 (CVE.org)
EPSS score
63.89%
0%100%
Critical · 0.00 pp in 30 days
KEVExploited in the wildCritical · listed in 1 catalog
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 27 · Related 25
DSA-4824-1OPENSUSE-SU-2020:1718-1OPENSUSE-SU-2020:1731-1OPENSUSE-SU-2020:1737-1OPENSUSE-SU-2020:1829-1OPENSUSE-SU-2020:1952-1

Timeline

  1. 03-11-2020
    PublishedVulnerability first disclosed.
  2. 03-11-2021
    Added to CISA KEVExploitedGoogle Chrome FreeType Heap Buffer Overflow Vulnerability
  3. 17-11-2021
    CISA remediation dueDeadline passedApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS metrics

8 scores · 7 sources · 2 versions

EPSS trend

Probability

63.89%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

No change 0.00 pp

From 63.89% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
03-11-2021
Federal due date
17-11-2021
ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2020-15999

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (crbug.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (googleprojectzero.blogspot.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Suse42 products
  • freetype2&distro=HPE Helion OpenStack 8< 2.6.3-7.18.1
  • freetype2&distro=SUSE Enterprise Storage 5< 2.6.3-7.18.1
  • freetype2&distro=SUSE Linux Enterprise High Performance Computing 15-ESPOS< 2.10.1-4.8.1
  • freetype2&distro=SUSE Linux Enterprise High Performance Computing 15-LTSS< 2.10.1-4.8.1
  • freetype2&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 2.10.1-4.8.1
Redhat6 products
  • freetype< 0:2.8-14.el7_9.1 | < 0:2.9.1-4.el8_0.1 | < 0:2.9.1-4.el8_1.1 | < 0:2.9.1-4.el8_2.1 | < 0:2.9.1-4.el8_3.1
  • freetype-debuginfo< 0:2.8-14.el7_9.1 | < 0:2.9.1-4.el8_0.1 | < 0:2.9.1-4.el8_1.1 | < 0:2.9.1-4.el8_2.1 | < 0:2.9.1-4.el8_3.1
  • freetype-debugsource< 0:2.9.1-4.el8_0.1 | < 0:2.9.1-4.el8_1.1 | < 0:2.9.1-4.el8_2.1 | < 0:2.9.1-4.el8_3.1
  • freetype-demos< 0:2.8-14.el7_9.1
  • freetype-demos-debuginfo< 0:2.9.1-4.el8_0.1 | < 0:2.9.1-4.el8_1.1 | < 0:2.9.1-4.el8_2.1 | < 0:2.9.1-4.el8_3.1
Alpine5 products
  • firefox< 83.0-r0
  • firefox-esr< 78.5.0-r0
  • freetype≥ 2.6.0, < 2.10.0-r1 | ≥ 2.6.0, < 2.10.1-r1 | ≥ 2.6.0, < 2.10.4-r0 | ≥ 2.6.0, < 2.9.1-r3
  • librewolf< 83.0-r0
  • thunderbird< 78.5.1-r0
Opensuse5 products
  • backports_sle15.0:sp2
  • freetype2&distro=openSUSE Leap 15.1< 2.10.1-lp151.4.6.1
  • freetype2&distro=openSUSE Leap 15.2< 2.10.1-lp152.2.5.1
  • ft2demos&distro=openSUSE Leap 15.1< 2.10.1-lp151.4.6.1
  • ft2demos&distro=openSUSE Leap 15.2< 2.10.1-lp152.2.5.1
NuGet4 products
  • CefSharp.Common< 85.3.130
  • CefSharp.WinForms< 85.3.130
  • CefSharp.Wpf< 85.3.130
  • CefSharp.Wpf.HwndHost< 85.3.130
Ubuntu3 products
  • androidAll versions (No fix recorded)
  • chromium-browser< 86.0.4240.198-0ubuntu0.16.04.1 | < 86.0.4240.198-0ubuntu0.18.04.1
  • freetype< 2.6.1-0.1ubuntu2.5 | < 2.8.1-2ubuntu2.1 | < 2.10.1-2ubuntu0.1 | < 2.5.2-1ubuntu2.8+esm2
Debian2 products
  • freetype< 2.9.1-3+deb10u2 | < 2.6.3-3.2+deb9u2 | < 2.10.2+dfsg-4
  • debian_linuxEOL10.0
Fedoraproject1 product
Freetype1 product
Google1 product
  • chrome≥ unspecified, < 86.0.4240.111 | < 86.0.4240.111
Mageia1 product
  • freetype2< 2.9.1-4.1.mga7 | < 2.9.1-4.1.mga7.tainted
Netapp1 product

12 vendors · 72 products

References

54 links
Show all 54 references