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CVE-2024-1552

HIGH
7.5
CVSS Score
Published: February 20, 2024 at 01:21 PM UTC
Updated: June 17, 2026 at 07:04 AM UTC
4 products affected across 2 vendorsDebian LinuxFirefoxThunderbird· also runs on 1 platform

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

Incorrect code generation could have led to unexpected numeric conversions and potential undefined behavior.*Note:* This issue only affects 32-bit ARM devices. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.

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 < 115.8.0v < 123v < 123.0
Affected range stops below 115.8.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 123, so it looks safe — our inference, not a vendor statement
Affected range stops below 123.0, so it looks safe — our inference, not a vendor statement
linux-linux-kernel (environment)
Thunderbird· Mozilla
95%
v < 115.8v < 115.8.0
Affected range stops below 115.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 115.8.0, so it looks safe — our inference, not a vendor statement
linux-linux-kernel (environment)
Firefox ESR· Mozilla
60%
v < 115.8
Affected range stops below 115.8, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (6)

Issue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1874502
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/03/msg00000.html
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/03/msg00001.html
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-05/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-06/
Vendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-07/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-681

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