LiveActive security incident?Get immediate response
CVE Record

CVE-2020-27519: Pritunl Client v1.2.2550.20 contains a local privilege escalation vulnerability in the pritunl-service comp...

Pritunl Client v1.2.2550.20 contains a local privilege escalation vulnerability in the pritunl-service component. The attack vector is: malicious openvpn config. A local attacker could leverage the log and log-append along with log injection to create or append to privileged script files and execute code as root/SYSTEM.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-27519 is a local privilege escalation issue in Pritunl Client v1.2.2550.20. A malicious OpenVPN configuration could let a local attacker abuse service logging behavior to run code with root or SYSTEM privileges. This is serious where users can import VPN profiles from untrusted sources.

Executive priority

Prioritize if Pritunl Client is deployed on employee workstations or servers. The issue is not described as remotely exploitable, but successful abuse could turn a local foothold into full system control.

Technical view

The CVE record describes unsafe handling of OpenVPN log and log-append options in the pritunl-service component. Combined with log injection, these options could create or append privileged script files and lead to root or SYSTEM code execution. The source bundle does not provide CVSS, CWE, exploit evidence, or a fixed version.

Likely exposure

Exposure is likely limited to endpoints running Pritunl Client v1.2.2550.20 where a local user or attacker can supply a malicious OpenVPN configuration. No broader affected version range is stated in the provided sources.

Exploitation context

The source bundle describes a local attack vector through a malicious OpenVPN config. It does not cite public exploitation, KEV listing, exploit maturity, or remote attackability. Treat active exploitation as unconfirmed.

Researcher notes

Evidence is sparse. The CVE description identifies version v1.2.2550.20, pritunl-service, malicious OpenVPN configs, log/log-append abuse, and root/SYSTEM impact. The bundle references GitHub commits but does not include a fixed release, CVSS vector, CWE mapping, or exploitation confirmation.

Mitigation direction

  • Inventory endpoints for Pritunl Client v1.2.2550.20.
  • Check Pritunl guidance and referenced commits for fixed builds.
  • Upgrade affected clients to a vendor-supported fixed version once confirmed.
  • Restrict importing VPN configurations to trusted sources only.
  • Monitor privileged script paths for unexpected changes.

Validation and detection

  • Confirm installed Pritunl Client versions on managed endpoints.
  • Review VPN profile provenance and import controls.
  • Check endpoint telemetry for suspicious pritunl-service activity.
  • Inspect recent privileged script modifications near VPN client use.
  • Verify remediation against vendor release or commit guidance.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-27519 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.