X.Org Server Glamor heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k4.00

Summaryinfo

A vulnerability, which was classified as very critical, was found in X.Org Server. The impacted element is an unknown function of the component Glamor. Such manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2026-93522. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in X.Org Server (affected version not known). It has been rated as very critical. Affected by this issue is some unknown functionality of the component Glamor. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

This vulnerability is handled as CVE-2026-93522. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/16/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/15/2026 VulDB entry created
10/16/2026 +0 days Advisory disclosed
10/16/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: x.org

Status: Not defined

CVE: CVE-2026-93522 (🔒)
GCVE (CVE): GCVE-0-2026-93522
GCVE (VulDB): GCVE-100-421010

Entryinfo

Created: 10/16/2026 01:18
Changes: 10/16/2026 01:18 (47)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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