CVE-2020-12828: An issue was discovered in AnchorFree VPN SDK before 1.3.3.218

Q: How do I fix CVE-2020-12828?

virtual private network software development kit: upgrade to 1.3.3.218. Exact commands for each OS are on this page.

Q: Is CVE-2020-12828 being exploited?

CVE-2020-12828 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-2020-12828 affect?

CVE-2020-12828 affects virtual private network software development kit. Severity is critical (CVSS 9.8). An issue was discovered in AnchorFree VPN SDK before 1.3.3.218. The VPN SDK service takes certain executable locations over a socket bound to localhost. Binding to the socket and providing a path where a malicious executable file resides le

Q: How urgent is CVE-2020-12828?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-12828 is a critical-severity flaw (CVSS 9.8) affecting virtual private network software development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in AnchorFree VPN SDK before 1.3.3.218. The VPN SDK service takes certain executable locations over a socket bound to localhost. Binding to the socket and providing a path where a malicious executable file resides leads to executing the malicious executable file with SYSTEM privileges.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.3% (top 12%)
CISA exploited list	No
Weakness	CWE-434
Published	2020-05-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pango

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

Am I affected?

Timeline

2020-05-21 17:15 UTCPublished CVE record published
2026-06-17 02:52 UTCUpdated Record last modified

pango virtual private network software development kit UPGRADE

Affected: < 1.3.3.218

Fixed in: 1.3.3.218

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy virtual-private-network-software-development-kit || rpm -q virtual-private-network-software-development-kit || virtual-private-network-software-development-kit --version

2. UPGRADE to 1.3.3.218 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade virtual-private-network-software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade virtual-private-network-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-2020-12828?

virtual private network software development kit: upgrade to 1.3.3.218. Exact commands for each OS are on this page.

Is CVE-2020-12828 being exploited?

CVE-2020-12828 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-2020-12828 affect?

CVE-2020-12828 affects virtual private network software development kit. Severity is critical (CVSS 9.8). An issue was discovered in AnchorFree VPN SDK before 1.3.3.218. The VPN SDK service takes certain executable locations over a socket bound to localhost. Binding to the socket and providing a path where a malicious executable file resides le

How urgent is CVE-2020-12828?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

References

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