The aescrypt gem 1.0.0 for Ruby does not randomize the CBC IV for use with the AESCrypt.encrypt and AESCrypt.decrypt functions, which allows attackers to defeat cryptographic protection mechanisms via a chosen plaintext attack
Published Apr 19, 2017
7.5
HIGHCVSS 3.0
EPSS 1.15%
Description
The aescrypt gem 1.0.0 for Ruby does not randomize the CBC IV for use with the AESCrypt.encrypt and AESCrypt.decrypt functions, which allows attackers to defeat cryptographic protection mechanisms via a chosen plaintext attack.
Affected products
No data.
- ≤ 1.0.0
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.15% (0.01148) | 65.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.15% (0.01148) | 62.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.30% (0.00300) | 51.16th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00178) | 56.28th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.18% (0.00178) | 55.13th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00178) | 53.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (6)
- http://www.securityfocus.com/bid/98035 vdb-entryx_refsource_BID
- https://github.com/Gurpartap/aescrypt/issues/4 x_refsource_MISCThird Party Advisory
- https://github.com/advisories/GHSA-4c4w-3q45-hp9j Advisory
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/aescrypt/CVE-2013-7463.yml
- https://nvd.nist.gov/vuln/detail/CVE-2013-7463
- https://web.archive.org/web/20200227173428/http://www.securityfocus.com/bid/98035
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/98035 | vdb-entryx_refsource_BID | |
| https://github.com/Gurpartap/aescrypt/issues/4 | x_refsource_MISCThird Party Advisory | |
| https://github.com/advisories/GHSA-4c4w-3q45-hp9j | Advisory | |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/aescrypt/CVE-2013-7463.yml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2013-7463 | ||
| https://web.archive.org/web/20200227173428/http://www.securityfocus.com/bid/98035 |
Change history (0)
No recorded changes yet.