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CVE-1999-0682

24
FAUCET Score

CVE-1999-0682 describes a vulnerability in Microsoft Exchange 5.5 that permits remote attackers to relay email, effectively enabling spam, even when anti-relaying features are active. This medium-severity vulnerability has a CVSS score of 5.0, indicating it can be exploited over the network with low complexity and no authentication, leading to a partial impact on availability. Despite its age, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:-:*:*:*:*:*:*
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:sp1:*:*:*:*:*:*
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:sp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
26.10%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.2610 is in the 98th percentile among its peer group of 23,725 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.microsoft.com / en-us/security-updates/securitybulletins/1999/ms99-027
PatchVendor Advisory
support.microsoft.com / default.aspx
ciac.org / ciac/bulletins/j-056.shtml
Broken Link
securityfocus.com / bid/567
Third Party AdvisoryVDB Entry