HIGH
Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode
Published Aug 9, 2017
8.7
HIGHCVSS 4.0
EPSS 1.51%
Description
Lemur 0.1.4 does not use sufficient entropy in its IV when encrypting AES in CBC mode.
Affected products
Remediation
No remediation recorded yet.
Metrics
8.7 HIGH GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality High
Vulnerable System Integrity None
Vulnerable System Availability None
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.51% 0.01511
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01511
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.51% (0.01511) | 73.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.51% (0.01509) | 71.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00345) | 54.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00155) | 53.19th | v3 (v2023.03.01) |
| May 8, 2023 | 0.15% (0.00155) | 50.37th | v3 (v2023.03.01) |
| Mar 29, 2023 | 0.20% (0.00203) | 56.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00284) | 63.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
Weaknesses (1)
References (7)
- http://www.openwall.com/lists/oss-security/2015/10/20/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://github.com/Netflix/lemur/commit/394e18f76e5eb534d95160945ebc231ec3b4c794
- https://github.com/Netflix/lemur/issues/117 x_refsource_CONFIRMThird Party Advisory
- https://github.com/advisories/GHSA-chg9-3c3p-ch23 Advisory
- https://github.com/kvesteri/sqlalchemy-utils/issues/166 x_refsource_CONFIRMThird Party Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/lemur/PYSEC-2017-50.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2015-7764
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2015/10/20/3 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://github.com/Netflix/lemur/commit/394e18f76e5eb534d95160945ebc231ec3b4c794 | ||
| https://github.com/Netflix/lemur/issues/117 | x_refsource_CONFIRMThird Party Advisory | |
| https://github.com/advisories/GHSA-chg9-3c3p-ch23 | Advisory | |
| https://github.com/kvesteri/sqlalchemy-utils/issues/166 | x_refsource_CONFIRMThird Party Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/lemur/PYSEC-2017-50.yaml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2015-7764 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 9, 2017
Updated Aug 6, 2024
Reserved Oct 9, 2015
Link CVE-2015-7764
CISA Vulnrichment
GHSA-CHG9-3C3P-CH23 Updated n/a