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CVE-1999-1049ARCserve NT agents use weak encryption (XOR) for passwords, which allows remote attackers to sniff the authentication request to port 6050…
- 10.0HighCVSS base score
- 1.7%Exploitation in 30 daysEPSS · top 22% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
ARCserve NT agents use weak encryption (XOR) for passwords, which allows remote attackers to sniff the authentication request to port 6050 and decrypt the password.
Timeline
ID reserved
By mitre
- 12 days later
· 12 days later
Published
- 23 years later
· 23 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 1.7% · top 22% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
References1
- 19990222 Severe Security Hole in ARCserve NT agents (fwd) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-1999-1030 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-1999-1049)Record last updated .