Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on
Published Nov 16, 2020
4.4
MEDIUMCVSS 3.1
EPSS 0.32%
Description
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on.
Affected products
- Vendor n/a Product Nextcloud Server Defaultn/a
- Version Fixed in 20.0.0StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Nextcloud Server | n/a |
|
- < 20.0.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.32% (0.00323) | 23.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.32% (0.00320) | 23.46th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.21% (0.00211) | 41.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00056) | 25.42th | v3 (v2023.03.01) |
| Jun 18, 2024 | 0.06% (0.00056) | 23.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00056) | 21.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01412) | 72.97th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01412) | 72.95th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01412) | 70.95th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01412) | 50.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v1 |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Sep 1, 2021 | 3.63% (0.03630) | 82.60th | v1 |
| Apr 14, 2021 | 3.63% (0.03630) | 0.00th | v1 |
References (3)
- http://seclists.org/fulldisclosure/2020/Dec/54 mailing-listx_refsource_FULLDISCExploitMailing ListThird Party Advisory
- https://hackerone.com/reports/743505 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 x_refsource_MISCBroken LinkVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2020/Dec/54 | mailing-listx_refsource_FULLDISCExploitMailing ListThird Party Advisory | |
| https://hackerone.com/reports/743505 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 | x_refsource_MISCBroken LinkVendor Advisory |
Change history (0)
No recorded changes yet.