How severe is CVE-2020-1997?

CVE-2020-1997 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-1997 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1997?

CVE-2020-1997 affects Paloaltonetworks Pan-os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1997?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-1997 published?

CVE-2020-1997 was published on 2020-05-13 and last updated on 2026-06-17.

CVE-2020-1997

CVE-2020-1997 is a medium-severity vulnerability in Paloaltonetworks Pan-os with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.8
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Paloaltonetworks Pan-os
Published: 2020-05-13
Last modified: 2026-06-17

Description

An open redirection vulnerability in the GlobalProtect component of Palo Alto Networks PAN-OS allows an attacker to specify an arbitrary redirection target away from the trusted GlobalProtect gateway. If the user then successfully authenticates it will cause them to access an unexpected and potentially malicious website. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.0 versions earlier than 8.0.14.

Frequently asked questions

What is CVE-2020-1997?: An open redirection vulnerability in the GlobalProtect component of Palo Alto Networks PAN-OS allows an attacker to specify an arbitrary redirection target away from the trusted GlobalProtect gateway. If the user then successfully authenticates it will cause them to access an unexpected and potentially malicious website. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.0 versions earlier than 8.0.14.
How severe is CVE-2020-1997?: CVE-2020-1997 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-1997 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1997?: CVE-2020-1997 affects Paloaltonetworks Pan-os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1997?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1997 published?: CVE-2020-1997 was published on 2020-05-13 and last updated on 2026-06-17.

References

https://security.paloaltonetworks.com/CVE-2020-1997

Affected products (1)

cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*

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