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CVE-2023-37209

HIGH
8.8
CVSS Score
Published: July 5, 2023 at 09:05 AM UTC
Updated: June 17, 2026 at 06:07 AM UTC
1 product affected across 1 vendorFirefox

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%

Description

A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

Affected

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

Firefox· Mozilla
95%
v < 115
Affected range stops below 115, so it looks safe — our inference, not a vendor statement
Affected range stops below 115.0, 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 (3)

Issue TrackingPermissions Required
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1837993
Source: [email protected]
https://security.gentoo.org/glsa/202401-10
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2023-22/

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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