CVE-1999-1231 json
ssh 2.0.12, and possibly other versions, allows valid user names to attempt to enter the correct password multiple times, but only prompts…
published 1999-06-09 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1212
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
ssh 2.0.12, and possibly other versions, allows valid user names to attempt to enter the correct password multiple times, but only prompts an invalid user name for a password once, which allows remote attackers to determine user account names on the server.
Patch / fix
- securityfocus.com/archive/1/14758 advisory
Exploit prediction
1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- securityfocus.com http://www.securityfocus.com/archive/1/14758 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
References
-
securityfocus.com
/archive/1/14758
mailing-list, exploit, patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/2276
vdb-entry
Sources
- CVE List CVE-1999-1231
- NVD CVE-1999-1231
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