CVE-2013-7463 json
Aescrypt does not sufficiently use random values
published 2017-04-19 9 y ago modified 2026-06-17 4 mo ago also GHSA-4c4w-3q45-hp9j , EUVD-2017-0161
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | aescrypt | <=1.0.0 |
no fix listed |
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
References
-
github.com
/Gurpartap/aescrypt/issues/4
web, third-party-advisory
-
securityfocus.com
/bid/98035
vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2013-7463
advisory
-
github.com
/Gurpartap/aescrypt
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/aescrypt/CVE-2013-7463.yml
web
-
web.archive.org
/web/20200227173428/http://www.securityfocus.com/bid/98035
web
Sources
- CVE List CVE-2013-7463
- GitHub Advisory GHSA-4c4w-3q45-hp9j
- NVD CVE-2013-7463
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.