Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2020-9525: CS2 Network P2P through 3.x, as used in millions of Internet of Things devices, suffers from an authentication

52
This month
HIGH 8.1REMOTEUPGRADE

CVE-2020-9525 is a high-severity flaw (CVSS 8.1) affecting p2p. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CS2 Network P2P through 3.x, as used in millions of Internet of Things devices, suffers from an authentication flaw that allows remote attackers to perform a man-in-the-middle attack, as demonstrated by eavesdropping on user video/audio streams, capturing credentials, and compromising devices.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score8.1 (High)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance1.6% (top 24%)
CISA exploited listNo
WeaknessCWE-200, CWE-522
Published2020-08-10
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: cs2-network

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

cs2-network p2p UPGRADE
Affected: <= 3.0.3a
Fixed in: newer than 3.0.3a
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy p2p || rpm -q p2p || p2p --version
2. UPGRADE to newer than 3.0.3a (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade p2p
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade p2p
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-9525?

p2p: upgrade to newer than 3.0.3a. Exact commands for each OS are on this page.

Is CVE-2020-9525 being exploited?

CVE-2020-9525 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-9525 affect?

CVE-2020-9525 affects p2p. Severity is high (CVSS 8.1). CS2 Network P2P through 3.x, as used in millions of Internet of Things devices, suffers from an authentication flaw that allows remote attackers to perform a man-in-the-middle attack, as demonstrated by eavesdropping on user video/audio str

How urgent is CVE-2020-9525?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.