CVE-2024-0753
MEDIUM
6.5
CVSS Score
Published: January 23, 2024 at 01:48 PM UTC
Updated: June 17, 2026 at 06:54 AM UTC
4 products affected across 2 vendorsDebian LinuxFirefoxThunderbird
Using Firefox by Mozilla?
Get instant alerts when new vulnerabilities affect Firefox - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit
Description
In specific HSTS configurations an attacker could have bypassed HSTS on a subdomain. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 122
Affected range stops below 122, so it looks safe — our inference, not a vendor statement
Affected range stops below 122.0, so it looks safe — our inference, not a vendor statement
v < 115.7
Affected range stops below 115.7, so it looks safe — our inference, not a vendor statement
v < 115.7
Affected range stops below 115.7, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (7)
Issue TrackingRelease Notes
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1870262Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/01/msg00015.htmlMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/01/msg00022.htmlRelease NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-01/Release NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-02/Release NotesVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2024-04/Source: af854a3a-2127-422b-91ae-364da2661108
https://www.youtube.com/watch?v=JjMb7Z8ak2kSSVC — 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
- 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.
Free plan, no card