VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 9.8 criticalEPSS 0.5% probability of exploitation in 30 days
Mozilla

CVE-2026-117917: Invalid pointer in the Graphics: WebRender component

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
0.5%

EPSS score, percentile 45.2 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
9.8 Critical

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

No patch or vendor advisory is listed in the CVE record. Check Mozilla's advisories.

Which versions are affected?

Unaffected 115.44; 153.6; 159; 153.6; 159

Versions by product

Source: CISA KEV 2026.11.10, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Invalid pointer in the Graphics: WebRender component

Invalid pointer in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

No patch, vendor advisory or mitigation is listed in the CVE record. Check Mozilla's own security advisories for a fix, and compare your version with the affected versions below.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (2 products)
Mozilla Firefox
StatusVersions
Unaffected115.44
Unaffected153.6
Unaffected159
Mozilla Thunderbird
StatusVersions
Unaffected153.6
Unaffected159

Versions the record lists as unaffected: 115.44, 153.6, 159.

Source: CVE List, as of . About the data.

Weakness

CWE-824
  • CWE-824: Access of Uninitialized Pointer

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

6

Known exploited Mozilla vulnerabilities

  • CVE-2010-3765: Mozilla Multiple Products Remote Code Execution Vulnerability (added )
  • CVE-2024-9680: Mozilla Firefox Use-After-Free Vulnerability (added )
  • CVE-2016-9079: Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability (added )
  • CVE-2015-4495: Mozilla Firefox Security Feature Bypass Vulnerability (added )
  • CVE-2019-11707: Mozilla Firefox and Thunderbird Type Confusion Vulnerability (added )