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CVE-2022-46880

MEDIUM
6.5
CVSS Score
Published: December 22, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 05:12 AM UTC
3 products affected across 1 vendorFirefoxThunderbirdFirefox ESR

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.

Affected

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

Firefox· Mozilla
95%
v < 105
Affected range stops below 105, so it looks safe — our inference, not a vendor statement
Affected range stops below 105.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 102.6
Affected range stops below 102.6, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 102.6
Affected range stops below 102.6, so it looks safe — our inference, not a vendor statement

References (6)

Issue TrackingPermissions Required
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1749292
Vendor Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202305-06
Vendor Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202305-13
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2022-40/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2022-52/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2022-53/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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