CVE-2023-5170

HIGH
7.4
CVSS Score
Published: September 27, 2023 at 02:13 PM UTC
Updated: June 17, 2026 at 06:47 AM UTC
1 product affected across 1 vendorFirefox

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Severity
HIGH7.4
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

In canvas rendering, a compromised content process could have caused a surface to change unexpectedly, leading to a memory leak of a privileged process. This memory leak could be used to effect a sandbox escape if the correct data was leaked. This vulnerability affects Firefox < 118.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 118
Affected range stops below 118, so it looks safe — our inference, not a vendor statement
Affected range stops below 118.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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