CVE-2002-1872

Microsoft SQL Server 6.0 through 2000, with SQL Authentication enabled, uses weak password encryption (XOR), which allows remote attackers to sniff and decrypt the password.

Published: 2002-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2002-1872 is rated High Risk (67.3/100): CVSS High severity, with high exploitation likelihood (EPSS 5.95%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.98% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2002-1872

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.97% 5.95% +4.98%
2 2026-05-23 1.17% 0.97% -0.20%
3 2025-07-27 — 1.17% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-1872

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2002-1872

Affected software / configurations for CVE-2002-1872

Vendor Product Version Raw CPE
microsoft sql_server 6.0 cpe:2.3:a:microsoft:sql_server:6.0:*:*:*:*:*:*:*
microsoft sql_server 6.5 cpe:2.3:a:microsoft:sql_server:6.5:*:*:*:*:*:*:*
microsoft sql_server 7.0 cpe:2.3:a:microsoft:sql_server:7.0:*:*:*:*:*:*:*
microsoft sql_server 7.0 cpe:2.3:a:microsoft:sql_server:7.0:sp1:*:*:*:*:*:*
microsoft sql_server 7.0 cpe:2.3:a:microsoft:sql_server:7.0:sp2:*:*:*:*:*:*
microsoft sql_server 7.0 cpe:2.3:a:microsoft:sql_server:7.0:sp3:*:*:*:*:*:*
microsoft sql_server 7.0 cpe:2.3:a:microsoft:sql_server:7.0:sp4:*:*:*:*:*:*
microsoft sql_server 2000 cpe:2.3:a:microsoft:sql_server:2000:*:*:*:*:*:*:*
microsoft sql_server 2000 cpe:2.3:a:microsoft:sql_server:2000:sp1:*:*:*:*:*:*
microsoft sql_server 2000 cpe:2.3:a:microsoft:sql_server:2000:sp2:*:*:*:*:*:*

References for CVE-2002-1872

URL Tags
http://online.securityfocus.com/archive/1/298361 Broken Link Third Party Advisory VDB Entry Vendor Advisory
http://www.iss.net/security_center/static/10542.php Broken Link
http://www.nextgenss.com/papers/tp-SQL2000.pdf Broken Link
http://www.securityfocus.com/bid/6097 Broken Link Third Party Advisory VDB Entry
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