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CVE-2024-4767

MEDIUM
4.3
CVSS Score
Published: May 14, 2024 at 05:21 PM UTC
Updated: June 17, 2026 at 08:02 AM UTC
4 products affected across 2 vendorsDebian LinuxFirefoxThunderbird

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

If the `browser.privatebrowsing.autostart` preference is enabled, IndexedDB files were not properly deleted when the window was closed. This preference is disabled by default in Firefox. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.

Affected

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

Debian Linux· Debiandrupal
95%
10.0
Firefox· Mozilla
95%
v < 115.11.0v < 126v < 126.0
Affected range stops below 115.11.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 126, so it looks safe — our inference, not a vendor statement
Affected range stops below 126.0, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 115.11v < 115.11.0
Affected range stops below 115.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 115.11.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
60%
v < 115.11
Affected range stops below 115.11, so it looks safe — our inference, not a vendor statement

References (6)

ExploitIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1878577
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-21/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-22/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-23/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-459CWE-359

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