Multiple integer overflows in X.org libXi before 1.7.7 allow remote X servers to cause a denial of service (out-of-bounds memory access or i
Multiple integer overflows in X.org libXi before 1.7.7 allow remote X servers to cause a denial of service (out-of-bounds memory access or infinite loop) via vectors involving length fields.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; 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 help- Published
- Dec 13, 2016
- Updated
- Jun 16, 2026
- EPSS
- 3.0% · 87th percentile
- CWE
- CWE-125
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.0%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| x.org | libxi | cpe:2.3:a:x.org:libxi |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject fedora24
- fedoraproject fedora25
- x.org libxiup to 1.7.6 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Alpine:v3.2 | libxi | before 1.7.4-r1 | 1.7.4-r1 |
| Debian:12 | libxi | before 2:1.7.8-1 | 2:1.7.8-1 |
| Debian:7 | libxi | before 2:1.6.1-1+deb7u2 | 2:1.6.1-1+deb7u2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libX11 | before 1.6.2-6.2 | 1.6.2-6.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXfixes | before 5.0.1-5.2 | 5.0.1-5.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXi | before 1.7.4-12.2 | 1.7.4-12.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXi | before 1.7.4-17.1 | 1.7.4-17.1 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXrandr | before 1.4.2-5.2 | 1.4.2-5.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXrender | before 0.9.8-5.2 | 0.9.8-5.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXtst | before 1.2.2-5.2 | 1.2.2-5.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXv | before 1.0.10-5.2 | 1.0.10-5.2 |
| SUSE:Linux Enterprise Desktop 12 SP1 | libXvMC | before 1.0.8-5.2 | 1.0.8-5.2 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libX11 | before 1.6.2-8.1 | 1.6.2-8.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libXfixes | before 5.0.1-7.1 | 5.0.1-7.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libXi | before 1.7.4-14.1 | 1.7.4-14.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libXrender | before 0.9.8-7.1 | 0.9.8-7.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libXtst | before 1.2.2-7.1 | 1.2.2-7.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libXv | before 1.0.10-7.1 | 1.0.10-7.1 |
| SUSE:Linux Enterprise Desktop 12 SP2 | libXvMC | before 1.0.8-7.1 | 1.0.8-7.1 |
| SUSE:Linux Enterprise Software Development Kit 11 SP4 | xorg-x11-libs | before 7.4-8.26.49.1 | 7.4-8.26.49.1 |
Same product
x.org: all recordsOther highest-scoring records for the same primary product.
- CVE-2016-7946X.org libXi before 1.7.7 allows remote X servers to cause a denial of service (infinite loop) via vectors involving length fields.31Monitor
- CVE-2026-93543Out-of-bounds read in libXi's XI2 class parser29Monitor
- CVE-2013-1998Multiple buffer overflows in X.org libXi 1.7.1 and earlier allow X servers to cause a denial of service (crash) and possibly execute arbitra28Monitor
- CVE-2013-1995X.org libXi 1.7.1 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to an 28Monitor
- CVE-2013-1984Multiple integer overflows in X.org libXi 1.7.1 and earlier allow X servers to trigger allocation of insufficient memory and a buffer overfl28Monitor
- CVE-2026-94281Out-of-bounds read in libXi's XListInputDevices() class parsing26Monitor
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 |
|---|---|---|
| alpine:libxi | 1.7.4-r1 · Alpine:v3.2 | Package registry (OSV) |
| debian:libxi | 2:1.7.8-1 · Debian:12 | Package registry (OSV) |
| suse:libX11 | 1.6.2-6.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXfixes | 5.0.1-5.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXi | 1.7.4-12.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXrandr | 1.4.2-5.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXrender | 0.9.8-5.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXtst | 1.2.2-5.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXv | 1.0.10-5.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:libXvMC | 1.0.8-5.2 · SUSE:Linux Enterprise Desktop 12 SP1 | Package registry (OSV) |
| suse:xorg-x11-libs | 7.4-8.26.49.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-125 · Out-of-bounds ReadCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.openwall.com/lists/oss-security/2016/10/04/2
- www.openwall.com/lists/oss-security/2016/10/04/4
- www.securityfocus.com/bid/93364
- www.securitytracker.com/id/1036945
- cgit.freedesktop.org/xorg/lib/libXi/commit/?id=19a9cd607de73947fcfb104682f203ffe4e1f4e5
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C3NTWIWSQ575GREBVAOUQUIMDL5CDVGP/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KVTZ2XLPKLASQUIQA2GMKKAUOQIUMM7I/
- lists.x.org/archives/xorg-announce/2016-October/002720.html
- security.gentoo.org/glsa/201704-03
Vendor advisories and official records. Exploit/PoC links are deliberately left out.