CVE-2007-1859

XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authentication.

Published: 2007-05-02 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-1859 is rated Low Risk (30.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.41%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2007-1859

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 0.05% 0.41% +0.36%
2 2025-10-27 0.04% 0.05% +0.01%
3 2025-03-17 — 0.04% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-1859

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2007-1859

OS Trackers for CVE-2007-1859

vendor priority summary link
debian low CVE-2007-1859 low priority: Debian including 1 source packages (xscreensaver), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2007-1859
gentoo normal CVE-2007-1859: 1 GLSA(s) (200705-14), 1 atom(s) (x11-misc/xscreensaver); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-1859
redhat high — https://access.redhat.com/security/cve/CVE-2007-1859
ubuntu medium CVE-2007-1859 medium priority: Ubuntu including 1 source packages (xscreensaver), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2007-1859

Affected software / configurations for CVE-2007-1859

Vendor Product Version Raw CPE
xscreensaver xscreensaver 4.10 cpe:2.3:a:xscreensaver:xscreensaver:4.10:*:*:*:*:*:*:*

References for CVE-2007-1859

URL Tags
http://osvdb.org/35531
http://secunia.com/advisories/25065 Vendor Advisory
http://secunia.com/advisories/25105 Vendor Advisory
http://secunia.com/advisories/25116 Vendor Advisory
http://secunia.com/advisories/25118 Vendor Advisory
http://secunia.com/advisories/25119 Vendor Advisory
http://secunia.com/advisories/25225 Vendor Advisory
http://secunia.com/advisories/25610
http://security.gentoo.org/glsa/glsa-200705-14.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2007:097
http://www.novell.com/linux/security/advisories/2007_9_sr.html
http://www.redhat.com/support/errata/RHSA-2007-0322.html Patch Vendor Advisory
http://www.securityfocus.com/bid/23783
http://www.securitytracker.com/id?1017996
http://www.ubuntu.com/usn/usn-474-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/34054
https://issues.rpath.com/browse/RPL-1293
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11459
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