CVE-2025-14322 | Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

Published: 2025-12-09 Last update: 2026-04-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-14322 is rated Low Risk (35/100): CVSS High severity, with low exploitation likelihood (EPSS 0.03%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-14322

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-07 0.06% 0.03% -0.03%
2 2026-04-10 0.03% 0.06% +0.03%
3 2025-12-10 — 0.03% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-14322

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.0 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.6 5.8 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-14322

OS Trackers for CVE-2025-14322

vendor priority summary link
alpine — CVE-2025-14322: 3 source package rows (firefox, firefox-esr, thunderbird); 416 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 416. https://security.alpinelinux.org/vuln/CVE-2025-14322
debian not yet assigned CVE-2025-14322 not yet assigned priority: Debian including 3 source packages (firefox, firefox-esr, thunderbird), 11 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 11. https://security-tracker.debian.org/tracker/CVE-2025-14322
redhat high — https://access.redhat.com/security/cve/CVE-2025-14322
suse high CVE-2025-14322 severity important: SUSE including 47 source package names (2.2.1-7.2:libpython3_11-1_0-3.11.12-slfo.1.1_1.1, 2.2.1-7.2:python311-3.11.12-slfo.1.1_1.1, …), 228 product×package rows across 71 product lines (Container suse/sl-micro/6.0/toolbox, Container suse/sl-micro/6.1/baremetal-os-container, … (71 product lines)): Fixed 224, First Fixed 4. https://www.suse.com/security/cve/CVE-2025-14322/
ubuntu medium CVE-2025-14322 medium priority: Ubuntu including 9 source packages (firefox, mozjs102, …), 49 status rows across 7 suites (bionic, focal, jammy, noble, plucky, questing, upstream): DNE 22, needs-triage 10, ignored 9, not-affected 7, released 1. https://ubuntu.com/security/CVE-2025-14322

Affected software / configurations for CVE-2025-14322

Vendor Product Version Raw CPE
mozilla firefox < 115.31.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
mozilla firefox < 146.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
mozilla firefox >= 116.0, < 140.6.0 cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
mozilla thunderbird < 140.6.0 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
mozilla thunderbird < 146.0 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

References for CVE-2025-14322

cvelogic Threat Intelligence