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CVE-2023-29543

HIGH
8.8
CVSS Score
Published: June 2, 2023 at 12:00 AM UTC
Updated: August 19, 2026 at 03:29 PM UTC
3 products affected across 1 vendorFirefoxFirefox MobileFocus

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

An attacker could have caused memory corruption and a potentially exploitable use-after-free of a pointer in a global object's debugger vector. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Affected

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

Firefox· Mozilla
95%
v < 112v < 112.0
Affected range stops below 112, so it looks safe — our inference, not a vendor statement
Affected range stops below 112.0, so it looks safe — our inference, not a vendor statement
Firefox Mobile· Mozilla
95%
v < 112.0
Affected range stops below 112.0, so it looks safe — our inference, not a vendor statement
Focus· Mozilla
95%
v < 112v < 112.0
Affected range stops below 112, so it looks safe — our inference, not a vendor statement
Affected range stops below 112.0, 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:

Patch and advisory references

References (2)

Issue Tracking
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1816158
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2023-13/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416CWE-116

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