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Fencer Vulns
medium 4.6

CVE-2007-1859 json

XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function i…

published 2007-05-02 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-1853

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

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.

Patch / fix

  • xscreensaver Debian 14, Debian 13, Debian 12 5.03-1

debian advisories DEBIAN-CVE-2007-1859

  • xscreensaver RHEL 2.1 1:3.33-4.rhel21.5
  • xscreensaver RHEL 3 1:4.10-21.el3
  • xscreensaver RHEL 4 1:4.18-5.rhel4.14

red hat advisories RHSA-2007:0322

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-1859 updated

xscreensaver authentication bypass

  • Red Hat Desktop version 3 xscreensaver 4.10-21.el3 Red Hat Enterprise Linux AS (Advanced Server) version 2.1 xscreensaver 3.33-4.rhel21.5 Red Hat Enterprise Linux AS version 3 xscreensaver 4.10-21.el3 Red Hat Enterprise Linux AS version 4 xscreensaver 4.18-5.rhel4.14 Red Hat Enterprise Linux Desktop version 4 xscreensaver 4.18-5.rhel4.14 Red Hat Enterprise Linux ES version 2.1 xscreensaver 3.33-4.rhel21.5
    +6 more products
    Red Hat Enterprise Linux ES version 3 xscreensaver 4.10-21.el3 Red Hat Enterprise Linux ES version 4 xscreensaver 4.18-5.rhel4.14 Red Hat Enterprise Linux WS version 2.1 xscreensaver 3.33-4.rhel21.5 Red Hat Enterprise Linux WS version 3 xscreensaver 4.10-21.el3 Red Hat Enterprise Linux WS version 4 xscreensaver 4.18-5.rhel4.14 Red Hat Linux Advanced Workstation 2.1 xscreensaver 3.33-4.rhel21.5
    fixed: vendor fix RHSA-2007:0322

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.