vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2023-25752

MEDIUM
6.5
CVSS Score
Published: June 2, 2023 at 12:00 AM UTC
Updated: October 24, 2026 at 01:10 PM UTC
3 products affected across 1 vendorFirefoxThunderbirdFirefox ESR

Using Firefox by Mozilla?

Get instant alerts when new vulnerabilities affect Firefox - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds. This may have lead future code to be incorrect and vulnerable. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

Affected

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

Firefox· Mozilla
95%
v < 111.0
Affected range stops below 111, so it looks safe — our inference, not a vendor statement
Affected range stops below 111.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 102.9
Affected range stops below 102.9, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 102.9
Affected range stops below 102.9, so it looks safe — our inference, not a vendor statement

References (4)

Issue TrackingPermissions RequiredVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1811627
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2023-09/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2023-10/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2023-11/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card