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CVE-2001-1319

27
FAUCET Score

CVE-2001-1319 describes a denial-of-service vulnerability affecting Microsoft Exchange 5.5 2000. Remote attackers can exploit this by sending malformed BER encodings in LDAP filter type fields, causing the server to hang. With a CVSS score of 5.0 (Medium), this vulnerability is easily exploitable over the network with low complexity and no authentication, leading to a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.5CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:5.5:-:*:*:*:*:*:*
2000CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2000:-:*:*:*:*:*:*

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
29.43%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2943 is in the 98th percentile among its peer group of 23,705 CVEs.

Social Chatter

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

ciac.llnl.gov / ciac/bulletins/l-116.shtml
PatchThird Party AdvisoryUS Government ResourceVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/6899
Third Party AdvisoryVDB Entry
cert.org / advisories/CA-2001-18.html
Third Party AdvisoryUS Government Resource
ee.oulu.fi / research/ouspg/protos/testing/c06/ldapv3
Third Party Advisory
kb.cert.org / vuls/id/763400
Third Party AdvisoryUS Government Resource
kb.cert.org / vuls/id/CFCN-4YAQC7
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/3045
Third Party AdvisoryVDB Entry