CVE-2010-0463

Horde IMP 4.3.6 and earlier does not request that the web browser avoid DNS prefetching of domain names contained in e-mail messages, which makes it easier for remote attackers to determine the network location of the webmail user by logging DNS requests.

Published: 2010-01-29 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2010-0463 is rated Moderate Risk (48.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.93%). Core evidence: EPSS rose +1.60% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule 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-2010-0463

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 0.33% 1.93% +1.60%
2 2023-03-07 1.14% 0.33% -0.81%
3 2022-02-04 1.14%

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-0463

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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-2010-0463

OS Trackers for CVE-2010-0463

vendor priority summary link
redhat medium https://access.redhat.com/security/cve/CVE-2010-0463
ubuntu negligible CVE-2010-0463 negligible priority: Ubuntu including 2 source packages (imp3, imp4), 40 status rows across 20 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety): DNE 26, ignored 11, needs-triage 1, not-affected 1, released 1. https://ubuntu.com/security/CVE-2010-0463

Affected software / configurations for CVE-2010-0463

Vendor Product Version Raw CPE
horde imp <= 4.3.6 cpe:2.3:a:horde:imp:*:*:*:*:*:*:*:*
horde imp 2.0 cpe:2.3:a:horde:imp:2.0:*:*:*:*:*:*:*
horde imp 2.2 cpe:2.3:a:horde:imp:2.2:*:*:*:*:*:*:*
horde imp 2.2.1 cpe:2.3:a:horde:imp:2.2.1:*:*:*:*:*:*:*
horde imp 2.2.2 cpe:2.3:a:horde:imp:2.2.2:*:*:*:*:*:*:*
horde imp 2.2.3 cpe:2.3:a:horde:imp:2.2.3:*:*:*:*:*:*:*
horde imp 2.2.4 cpe:2.3:a:horde:imp:2.2.4:*:*:*:*:*:*:*
horde imp 2.2.5 cpe:2.3:a:horde:imp:2.2.5:*:*:*:*:*:*:*
horde imp 2.2.6 cpe:2.3:a:horde:imp:2.2.6:*:*:*:*:*:*:*
horde imp 2.2.7 cpe:2.3:a:horde:imp:2.2.7:*:*:*:*:*:*:*
horde imp 2.2.8 cpe:2.3:a:horde:imp:2.2.8:*:*:*:*:*:*:*
horde imp 2.3 cpe:2.3:a:horde:imp:2.3:*:*:*:*:*:*:*
horde imp 3.0 cpe:2.3:a:horde:imp:3.0:*:*:*:*:*:*:*
horde imp 3.1 cpe:2.3:a:horde:imp:3.1:*:*:*:*:*:*:*
horde imp 3.1.2 cpe:2.3:a:horde:imp:3.1.2:*:*:*:*:*:*:*
horde imp 3.2 cpe:2.3:a:horde:imp:3.2:*:*:*:*:*:*:*
horde imp 3.2.1 cpe:2.3:a:horde:imp:3.2.1:*:*:*:*:*:*:*
horde imp 3.2.2 cpe:2.3:a:horde:imp:3.2.2:*:*:*:*:*:*:*
horde imp 3.2.3 cpe:2.3:a:horde:imp:3.2.3:*:*:*:*:*:*:*
horde imp 3.2.4 cpe:2.3:a:horde:imp:3.2.4:*:*:*:*:*:*:*
horde imp 3.2.5 cpe:2.3:a:horde:imp:3.2.5:*:*:*:*:*:*:*
horde imp 3.2.6 cpe:2.3:a:horde:imp:3.2.6:*:*:*:*:*:*:*
horde imp 3.2.7 cpe:2.3:a:horde:imp:3.2.7:*:*:*:*:*:*:*
horde imp 3.2.7 cpe:2.3:a:horde:imp:3.2.7:rc1:*:*:*:*:*:*
horde imp 4.0 cpe:2.3:a:horde:imp:4.0:*:*:*:*:*:*:*
horde imp 4.0.1 cpe:2.3:a:horde:imp:4.0.1:*:*:*:*:*:*:*
horde imp 4.0.2 cpe:2.3:a:horde:imp:4.0.2:*:*:*:*:*:*:*
horde imp 4.0.3 cpe:2.3:a:horde:imp:4.0.3:*:*:*:*:*:*:*
horde imp 4.0.4 cpe:2.3:a:horde:imp:4.0.4:*:*:*:*:*:*:*
horde imp 4.1.3 cpe:2.3:a:horde:imp:4.1.3:*:*:*:*:*:*:*
horde imp 4.1.5 cpe:2.3:a:horde:imp:4.1.5:*:*:*:*:*:*:*
horde imp 4.1.6 cpe:2.3:a:horde:imp:4.1.6:*:*:*:*:*:*:*
horde imp 4.2 cpe:2.3:a:horde:imp:4.2:*:*:*:*:*:*:*
horde imp 4.2.1 cpe:2.3:a:horde:imp:4.2.1:*:*:*:*:*:*:*
horde imp 4.2.2 cpe:2.3:a:horde:imp:4.2.2:*:*:*:*:*:*:*
horde imp 4.3 cpe:2.3:a:horde:imp:4.3:*:*:*:*:*:*:*
horde imp 4.3.1 cpe:2.3:a:horde:imp:4.3.1:*:*:*:*:*:*:*
horde imp 4.3.2 cpe:2.3:a:horde:imp:4.3.2:*:*:*:*:*:*:*
horde imp 4.3.3 cpe:2.3:a:horde:imp:4.3.3:*:*:*:*:*:*:*
horde imp 4.3.4 cpe:2.3:a:horde:imp:4.3.4:*:*:*:*:*:*:*
horde imp 4.3.5 cpe:2.3:a:horde:imp:4.3.5:*:*:*:*:*:*:*

References for CVE-2010-0463

cvelogic Threat Intelligence