CVE-2024-6609

Memory corruption in NSS

HIGH
8.8
CVSS Score
Published: July 9, 2024 at 02:25 PM UTC
Updated: June 17, 2026 at 08:18 AM UTC
2 products affected across 1 vendorFirefoxThunderbird

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

When almost out-of-memory an elliptic curve key which was never allocated could have been freed again. This vulnerability affects Firefox < 128 and Thunderbird < 128.

Affected

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

v < 128
Affected range stops below 128, so it looks safe — our inference, not a vendor statement
Affected range stops below 128.0, so it looks safe — our inference, not a vendor statement
v < 128
Affected range stops below 128, so it looks safe — our inference, not a vendor statement
Affected range stops below 128.0, 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:

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
NVD-CWE-noinfo

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