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CVE-2003-0714

78
FAUCET Score

CVE-2003-0714 describes a denial-of-service vulnerability in Microsoft Exchange Server 5.5 and 2000's Internet Mail Service, allowing remote attackers to exhaust memory via a crafted SMTP extended verb request, potentially leading to a buffer overflow in Exchange 2000. This vulnerability has a CVSS score of 7.5, indicating high severity with network-based attacks, low complexity, and potential for partial impact on confidentiality, integrity, and availability. While not actively exploited in the wild (KEV), public exploit code exists, including Metasploit modules and ExploitDB entries. Despite the availability of exploit code, there is minimal community discussion or media coverage surrounding this CVE.

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:*:*:*:*:*:*
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:sp3:*:*:*:*:*:*
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:sp4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
76.39%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: MS03-046 Exchange 2000 XEXCH50 Heap Overflow · Oct 15, 2003
ExploitDB: EDB-16820 · Nov 11, 2010
This CVE's current EPSS score of 0.7639 is in the 99th percentile among its peer group of 51,506 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
Mailing ListThird Party Advisory
docs.microsoft.com / en-us/security-updates/securitybulletins/2003/ms03-046
PatchVendor Advisory
cert.org / advisories/CA-2003-27.html
Third Party AdvisoryUS Government Resource
kb.cert.org / vuls/id/422156
PatchThird Party AdvisoryUS Government Resource
securityfocus.com / bid/8838
ExploitPatchThird Party AdvisoryVDB Entry