How severe is CVE-2017-10971?

CVE-2017-10971 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-10971 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-10971?

CVE-2017-10971 affects X.org X Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-10971?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-10971 published?

CVE-2017-10971 was published on 2017-07-06 and last updated on 2026-06-17.

CVE-2017-10971

CVE-2017-10971 is a high-severity vulnerability in X.org X Server with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: X.org X Server
Published: 2017-07-06
Last modified: 2026-06-17

Description

In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.

Frequently asked questions

What is CVE-2017-10971?: In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.
How severe is CVE-2017-10971?: CVE-2017-10971 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-10971 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-10971?: CVE-2017-10971 affects X.org X Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-10971?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-10971 published?: CVE-2017-10971 was published on 2017-07-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*

More vulnerabilities in X.org X Server

CVE-2023-6816 — Critical (CVSS 9.8): A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical…
CVE-2017-12187 — Critical (CVSS 9.8): xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X…
CVE-2017-12186 — Critical (CVSS 9.8): xorg-x11-server before 1.19.5 was missing length validation in X-Resource extension allowing malicious X client to…
CVE-2017-12185 — Critical (CVSS 9.8): xorg-x11-server before 1.19.5 was missing length validation in MIT-SCREEN-SAVER extension allowing malicious X client…
CVE-2017-12184 — Critical (CVSS 9.8): xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause…
CVE-2017-12183 — Critical (CVSS 9.8): xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X…

All CVEs affecting X.org X Server →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-77946 — Critical (CVSS 10.0): A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function…
CVE-2026-76008 — Critical (CVSS 10.0): A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file…
CVE-2026-75784 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of…
CVE-2026-74843 — Critical (CVSS 10.0): A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function…
CVE-2026-16367 — Critical (CVSS 10.0): Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →