CVE-2021-28372: ThroughTek's Kalay Platform 2.0 network allows an attacker to impersonate an arbitrary ThroughTek (TUTK) devic

Q: How do I fix CVE-2021-28372?

kalay p2p software development kit: upgrade to 3.1.10. Exact commands for each OS are on this page.

Q: Is CVE-2021-28372 being exploited?

CVE-2021-28372 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-28372 affect?

CVE-2021-28372 affects kalay p2p software development kit. Severity is high (CVSS 8.3). ThroughTek's Kalay Platform 2.0 network allows an attacker to impersonate an arbitrary ThroughTek (TUTK) device given a valid 20-byte uniquely assigned identifier (UID). This could result in an attacker hijacking a victim's connection and f

Q: How urgent is CVE-2021-28372?

Priority 55/100. High severity; Public exploit reference

This month

HIGH 8.3UPGRADE

CVE-2021-28372 is a high-severity flaw (CVSS 8.3) affecting kalay p2p software development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ThroughTek's Kalay Platform 2.0 network allows an attacker to impersonate an arbitrary ThroughTek (TUTK) device given a valid 20-byte uniquely assigned identifier (UID). This could result in an attacker hijacking a victim's connection and forcing them into supplying credentials needed to access the victim TUTK device.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.3 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-290
Published	2021-08-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: throughtek

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

Am I affected?

Timeline

2021-08-17 22:15 UTCPublished CVE record published
2026-06-17 03:46 UTCUpdated Record last modified

throughtek kalay p2p software development kit UPGRADE

Affected: < 3.1.10

Fixed in: 3.1.10

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kalay-p2p-software-development-kit || rpm -q kalay-p2p-software-development-kit || kalay-p2p-software-development-kit --version

2. UPGRADE to 3.1.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kalay-p2p-software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kalay-p2p-software-development-kit

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-2021-28372?

kalay p2p software development kit: upgrade to 3.1.10. Exact commands for each OS are on this page.

Is CVE-2021-28372 being exploited?

CVE-2021-28372 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-2021-28372 affect?

CVE-2021-28372 affects kalay p2p software development kit. Severity is high (CVSS 8.3). ThroughTek's Kalay Platform 2.0 network allows an attacker to impersonate an arbitrary ThroughTek (TUTK) device given a valid 20-byte uniquely assigned identifier (UID). This could result in an attacker hijacking a victim's connection and f

How urgent is CVE-2021-28372?

Priority 55/100. High severity; Public exploit reference

Related CVEs

CVE-2021-32934 CRITICAL 9.1 UPGRADE The affected ThroughTek P2P products (SDKs using versions before 3.1.5, any versions with nossl tag, device fi

References

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