CVE-2007-5958: X.Org Xserver before 1.4.1 allows local users to determine the existence of arbitrary files via a filename arg

Q: How do I fix CVE-2007-5958?

xserver: upgrade to newer than 1.4. Exact commands for each OS are on this page.

Q: Is CVE-2007-5958 being exploited?

CVE-2007-5958 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2007-5958 affect?

CVE-2007-5958 affects xserver. Severity is medium (CVSS 5.0). X.Org Xserver before 1.4.1 allows local users to determine the existence of arbitrary files via a filename argument in the -sp option to the X program, which produces different error messages depending on whether the filename exists.

Q: How urgent is CVE-2007-5958?

Priority 46/100. EPSS top 7%: very likely to be exploited; Public exploit reference

This month

MEDIUM 5.0UPGRADE

CVE-2007-5958 is a medium-severity flaw (CVSS 5.0) affecting xserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

X.Org Xserver before 1.4.1 allows local users to determine the existence of arbitrary files via a filename argument in the -sp option to the X program, which produces different error messages depending on whether the filename exists.

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	5.3% (top 7%)
CISA exploited list	No
Weakness	CWE-200
Published	2008-01-18
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: x.org

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2008-01-18 23:00 UTCPublished CVE record published
2026-06-16 22:47 UTCUpdated Record last modified

x.org xserver UPGRADE

Affected: <= 1.4

Fixed in: newer than 1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy xserver || rpm -q xserver || xserver --version

2. UPGRADE to newer than 1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xserver

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xserver

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: X.Org xorg-server 1.1.1-48.13 - Probe for Files (PoC)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2007-5958?

xserver: upgrade to newer than 1.4. Exact commands for each OS are on this page.

Is CVE-2007-5958 being exploited?

CVE-2007-5958 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2007-5958 affect?

CVE-2007-5958 affects xserver. Severity is medium (CVSS 5.0). X.Org Xserver before 1.4.1 allows local users to determine the existence of arbitrary files via a filename argument in the -sp option to the X program, which produces different error messages depending on whether the filename exists.

How urgent is CVE-2007-5958?

Priority 46/100. EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2008-0006 HIGH 7.5 MITIGATE MITIGATE Buffer overflow in (1) X.Org Xserver before 1.4.1, and (2) the libfont and libXfont libraries on some platform
CVE-2007-6429 HIGH 9.3 MITIGATE MITIGATE Multiple integer overflows in X.Org Xserver before 1.4.1 allow context-dependent attackers to execute arbitrar
CVE-2007-6428 MEDIUM 5.0 MITIGATE UPGRADE The ProcGetReservedColormapEntries function in the TOG-CUP extension in X.Org Xserver before 1.4.1 allows cont
CVE-2007-5760 HIGH 9.3 UPGRADE MITIGATE Array index error in the XFree86-Misc extension in X.Org Xserver before 1.4.1 allows context-dependent attacke
CVE-2007-3957 MEDIUM 5.0 DOWNGRADE Buffer overflow in Nipun Jain xserver 0.1 alpha allows remote attackers to cause a denial of service via a POS

References

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