CVE-2020-1982 - CVE House
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Status published Medium CVE-2020-1982

PAN-OS: TLS 1.0 usage for certain communications with Palo Alto Networks cloud delivered services

Vulnerability Description

Certain communication between PAN-OS and cloud-delivered services inadvertently use TLS 1.0, which is known to be a cryptographically weak protocol. These cloud services include Cortex Data Lake, the Customer Support Portal, and the Prisma Access infrastructure. Conditions required for exploitation of known TLS 1.0 weaknesses do not exist for the communication between PAN-OS and cloud-delivered services. We do not believe that any communication is impacted as a result of known attacks against TLS 1.0. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.14; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3. PAN-OS 7.1 is not impacted by this issue.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This issue was found by a customer.

References

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CVE-2025-4617
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CVE-2025-4616
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Affected Vendor

Palo Alto Networks

View all reports →

Affected Software

PAN-OS
Vulnerable Versions:
8.0.*, 7.1.*, 9.1, 9.0, 8.1

Timeline

Official Publish: July 8th, 2020
Last Modified: September 17th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses (CWE)

CWE-326

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.