HOMEVULNERABILITIESCVE-2020-27519
HIGH

CVE-2020-27519

CWE-269Published: April 30, 2021· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-27519 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

pritunl1 product(s)
pritunl-client-electron
Source: NVD CPE · 1 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

PATCHhttps://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5e
PATCHhttps://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5e#diff-5c6a264bee3576f2a147b8db70332e9a16dd43d073782cf6d32a372abb22b899
PATCHhttps://github.com/pritunl/pritunl-client-electron/commit/c0aeb159351e5e99d752c27b87133eca299bdfce
PATCHhttps://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5e
PATCHhttps://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5e#diff-5c6a264bee3576f2a147b8db70332e9a16dd43d073782cf6d32a372abb22b899
PATCHhttps://github.com/pritunl/pritunl-client-electron/commit/c0aeb159351e5e99d752c27b87133eca299bdfce

All References (6)

→
https://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5ePatch · Third Party Advisory
→
https://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5e#diff-5c6a264bee3576f2a147b8db70332e9a16dd43d073782cf6d32a372abb22b899Patch · Third Party Advisory
→
https://github.com/pritunl/pritunl-client-electron/commit/c0aeb159351e5e99d752c27b87133eca299bdfcePatch · Third Party Advisory
→
https://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5ePatch · Third Party Advisory
→
https://github.com/pritunl/pritunl-client-electron/commit/87ceeae9b8ee415541d7d71de10675e699a76e5e#diff-5c6a264bee3576f2a147b8db70332e9a16dd43d073782cf6d32a372abb22b899Patch · Third Party Advisory
→
https://github.com/pritunl/pritunl-client-electron/commit/c0aeb159351e5e99d752c27b87133eca299bdfcePatch · Third Party Advisory

Quick Facts

CVE IDCVE-2020-27519
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-269
CISA KEVNo
Affected1 vendor(s)
PublishedApr 30, 2021

Related CVEs (CWE-269)

CVE-2021-1388
10.0
CVE-2024-6240
10.0
CVE-2025-0505
10.0
CVE-2022-24783
10.0
CVE-2018-4310
10.0
CVE-2020-27655
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-27519 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. CVE data is provided under the NVD usage policy.
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