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CVE-2005-2496

14
FAUCET Score

CVE-2005-2496 describes a privilege escalation vulnerability in the xntpd (ntpd) daemon versions prior to 4.2.0b. When configured with the -u option and a string-based group specification, the daemon incorrectly uses the user's group ID instead of the intended group's ID, leading to unintended privilege levels. This vulnerability has a CVSS score of 4.6, indicating a low severity with local access required for exploitation, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.0.a.2004-06-17_4.fc3CPE matchmatch criteria
cpe:2.3:a:dave_mills:ntpd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 68th percentile among its peer group of 3,049 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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: ntp-0:4.2.0.a.20040617-4.EL4.1
View patch

Vendor Advisories (1)

redhatCVE-2005-2496Low

security flaw

Aug 25, 2005

References

secunia.com / advisories/16602
Vendor Advisory
secunia.com / advisories/21464
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/22035
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9669
debian.org / security/2005/dsa-801
mandriva.com / security/advisories
osvdb.org / 19055
redhat.com / support/errata/RHSA-2006-0393.html
securityfocus.com / bid/14673
securityspace.com / smysecure/catid.html
Vendor Advisory
vupen.com / english/advisories/2005/1561