HOMEVULNERABILITIESCVE-2020-8987
HIGH

CVE-2020-8987

CWE-295Published: March 9, 2020· Updated: Jun 17, 2026

7.4
CVSS v3.1

Official Description

Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with "Allow filtering of HTTPS traffic for tracking detection" enabled. (This is the default configuration.)

NVD Source

Technical Analysis

CVE-2020-8987 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 7.4.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Vendors & Products

avast2 product(s)
antitrackavg antitrack
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast
ADVISORYhttps://www.davideade.com/2020/03/avast-antitrack.html
ADVISORYhttps://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast
ADVISORYhttps://www.davideade.com/2020/03/avast-antitrack.html

All References (4)

→
https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avastVendor Advisory
→
https://www.davideade.com/2020/03/avast-antitrack.htmlThird Party Advisory
→
https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avastVendor Advisory
→
https://www.davideade.com/2020/03/avast-antitrack.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2020-8987
CVSS Score7.4 / 10
SeverityHIGH
WeaknessCWE-295
CISA KEVNo
Affected1 vendor(s)
PublishedMar 9, 2020

Related CVEs (CWE-295)

CVE-2026-4370
10.0
CVE-2022-47758
9.8
CVE-2022-45597
9.8
CVE-2022-45100
9.8
CVE-2023-26463
9.8
CVE-2021-46880
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-8987 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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