PAN-OS: TLS 1.0 usage for certain communications with Palo Alto Networks cloud delivered services
Published Jul 8, 2020
4.8
MEDIUMCVSS 3.1
EPSS 0.45%
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.
Affected products
-
- Version 8.0.*StatusaffectedConstraints-
- Version 8.1StatusaffectedConstraints<8.1.15
- Version 9.0StatusaffectedConstraints<9.0.9
- Version 9.1StatusaffectedConstraints<9.1.3
- Version 7.1.*StatusunaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Palo Alto Networks | Pan-OS | n/a |
|
- ≥ 8.0.0 · ≤ 8.0.20
- ≥ 8.1.0 · < 8.1.14
- ≥ 9.0.0 · < 9.0.9
- ≥ 9.1.0 · < 9.1.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
This issue is fixed in PAN-OS 8.1.15, PAN-OS 9.0.9, PAN-OS 9.1.3, and all later PAN-OS versions.
A fixed version of PAN-OS is required to ensure secure usage of cloud-delivered services without interruption.
PAN-OS 7.1 and PAN-OS 8.0 are end-of-life (as of June 30, 2020 and October 31, 2019 respectively) and are no longer covered by our Product Security Assurance policies.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.45% (0.00450) | 36.75th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.45% (0.00450) | 38.43th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00065) | 28.97th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.07% (0.00065) | 28.83th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.07% (0.00065) | 26.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00073) | 29.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.50% (0.04499) | 74.08th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.84% (0.01840) | 47.83th | v1 |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Jan 5, 2022 | 0.42% (0.00416) | 26.65th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://security.paloaltonetworks.com/CVE-2020-1982 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://security.paloaltonetworks.com/CVE-2020-1982 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.