CVE-2020-8254

mediumpriority · attend · 46EPSS 0.021 · 82 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

2.12% (82nd) EPSS

CVSS 6.8 · medium

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

A vulnerability in the Pulse Secure Desktop Client < 9.1R9 has Remote Code Execution (RCE) if users can be convinced to connect to a malicious server. This vulnerability only affects Windows PDC.To improve the security of connections between Pulse clients and Pulse Connect Secure, see below recommendation(s):Disable Dynamic certificate trust for PDC.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-23US

exploits (1)

Public proof-of-concept and weaponised exploit code.

mbadanoiu/CVE-2020-8254CVE-2020-8254: Zip Slip in Pulse Secure VPN Windows ClientPoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a Pulse Secure Desktop Client≤ 9.1R9enisa_euvdEU
pulsesecure pulse secure desktop client< 9.1nvdUScpe:2.3:a:pulsesecure:pulse_secure_desktop_client:*:*:*:*:*:*:*:*
pulsesecure pulse secure desktop client= 9.1nvdUScpe:2.3:a:pulsesecure:pulse_secure_desktop_client:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-10-28modified 2026-06-17

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+12524 more

references (5)

External citations — patches, advisories, analysis.

scry

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