X.Org server (xorg-server) 1.0.0 and later, X11R6.9.0, and X11R7.0 inadvertently treats the address of the geteuid function as if it is the
X.Org server (xorg-server) 1.0.0 and later, X11R6.9.0, and X11R7.0 inadvertently treats the address of the geteuid function as if it is the return value of a call to geteuid, which allows local users to bypass intended restrictions and (1) execute arbitrary code via the -modulepath command line option or (2) overwrite arbitrary files via -logfile.
- Published
- Mar 20, 2006
- Updated
- Jun 16, 2026
- EPSS
- 1.1% · 65th percentile
- CWE
- —
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Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.2 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.1%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| x.org | x11r6 | cpe:2.3:a:x.org:x11r6 |
| x.org | x11r7 | cpe:2.3:a:x.org:x11r7 |
| mandrakesoft | mandrake linux | cpe:2.3:o:mandrakesoft:mandrake_linux |
| redhat | fedora core | cpe:2.3:o:redhat:fedora_core |
| sun | solaris | cpe:2.3:o:sun:solaris |
| suse | suse linux | cpe:2.3:o:suse:suse_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- mandrakesoft mandrake linux2006
- redhat fedora corecore_5.0
- sun solaris10.0
- suse suse linux10.0
- x.org x11r66.9
- x.org x11r71.0
- x.org x11r71.0.1
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | xorg-server | before 1:1.0.2-1 | 1:1.0.2-1 |
Same product
x.org: all recordsOther highest-scoring records for the same primary product.
- CVE-2004-0687Multiple stack-based buffer overflows in (1) xpmParseColors in parse.c, (2) ParseAndPutPixels in create.c, and (3) ParsePixels in parse.c fo32Monitor
- CVE-2004-0688Multiple integer overflows in (1) the xpmParseColors function in parse.c, (2) XpmCreateImageFromXpmImage, (3) CreateXImage, (4) ParsePixels,32Monitor
- CVE-2004-0419XDM in XFree86 opens a chooserFd TCP socket even when DisplayManager.requestPort is 0, which could allow remote attackers to connect to the 31Monitor
- CVE-2006-1526Buffer overflow in the X render (Xrender) extension in X.org X server 6.8.0 up to allows attackers to cause a denial of service (crash), as 8Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:xorg-server | 1:1.0.2-1 · Debian:12 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | local | 2006-03-20 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- First PoC-1 d
- Published
- TodaySep 30, 2026+7499 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
—
CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- secunia.com/advisories/19256
- secunia.com/advisories/19307
- secunia.com/advisories/19311
- secunia.com/advisories/19316
- secunia.com/advisories/19676
- securityreason.com/securityalert/606
- securitytracker.com/id?1015793
- sunsolve.sun.com/search/document.do?assetkey=1-26-102252-1
- support.avaya.com/elmodocs2/security/ASA-2006-078.htm
- www.mandriva.com/security/advisories?name=MDKSA-2006:056
- www.novell.com/linux/security/advisories/2006_16_xorgx11server.html
- www.osvdb.org/24000
- www.osvdb.org/24001
- www.redhat.com/archives/fedora-announce-list/2006-March/msg00026.html
- www.securityfocus.com/archive/1/428183/100/0/threaded
- www.securityfocus.com/archive/1/428230/100/0/threaded
- www.vupen.com/english/advisories/2006/1017
- www.vupen.com/english/advisories/2006/1028
- exchange.xforce.ibmcloud.com/vulnerabilities/25341
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1697
Vendor advisories and official records. Exploit/PoC links are deliberately left out.