What is the CVSS score of CVE-2025-1937?

CVE-2025-1937 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Mozilla are affected by CVE-2025-1937?

CVE-2025-1937 presents notable security risk rated CVSS 7.5. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2025-1937?

Yes, a public proof-of-concept exploit is available for CVE-2025-1937. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2025-1937?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Mozilla CVE-2025-1937

HIGH

Improper Handling of Overlap Between Protected Memory Ranges (CWE-1260)

2025-03-04 security@mozilla.org

RCE Buffer Overflow Mozilla

7.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Apr 05, 2026 - 02:30 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:29 vuln.today

PoC Detected

Nov 03, 2025 - 21:18 vuln.today

Public exploit code

CVE Published

Mar 04, 2025 - 14:15 nvd

HIGH 7.5

DescriptionNVD

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

AnalysisAI

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-1260. Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. Affected products include: Mozilla Firefox, Mozilla Thunderbird.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More from same product – last 7 days

CVE-2026-44739 HIGH This Week

8.7 May 27

SQL injection in Pimcore's CustomReportsBundle (versions ≤ 12.3.5) lets an authenticated user holding the reports_config

Vendor StatusVendor

CVE-2025-1937 vulnerability details – vuln.today

Back

Mozilla CVE-2025-1937

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

Vendor StatusVendor

Share

External POC / Exploit Code