CVE-2020-1997Network attack vector

Malicious-site redirection via arbitrary registration target

Published May 13, 2020 · Updated Sep 16, 2024

Open redirect in Palo Alto Networks PAN-OS GlobalProtect 7.1 before 7.1.26 and 8.0 before 8.0.14 allows remote attackers to reroute users. The registration flow accepts an arbitrary redirection target and uses it after successful gateway authentication instead of restricting navigation to the trusted gateway. A user must submit valid credentials through the crafted flow; the resulting navigation can expose the user to a malicious website, with no reported direct data modification or service interruption.

CVSS severity6.1
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Palo Alto Networks PAN-OS GlobalProtect 7.1 before 7.1.26 and 8.0 before 8.0.14 allows remote attackers to reroute users. The registration flow accepts an arbitrary redirection target and uses it after successful gateway authentication instead of restricting navigation to the trusted gateway. A user must submit valid credentials through the crafted flow; the resulting navigation can expose the user to a malicious website, with no reported direct data modification or service interruption.

The record

CVE
CVE-2020-1997
Published
May 13, 2020
Updated
Sep 16, 2024
Vendor
Palo Alto Networks
Product
PAN-OS
Classifications
CWE-601
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.1 <7.1.26 changes=[{"at":"7.1.26","status":"unaffected"}]
  2. Affected versionversion=8.0 <8.0.14 changes=[{"at":"8.0.14","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Palo Alto Networks · PAN-OSversion=7.1 <7.1.26 changes=[{"at":"7.1.26","status":"unaffected"}]; version=8.0 <8.0.14 changes=[{"at":"8.0.14","status":"unaffected"}]

Published CVSS scores

5.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3Palo Alto NetworksCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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