CVE-2025-1937

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-03-04 13:31Z1 YR AGO

Last updated

2026-04-13 14:27Z4 MO AGO

Reserved

2025-03-04

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-1260Improper Handling of Overlap Between Protected Memory RangesBase
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

d515f7840f713dd180464ef43ae995f17d4ab8c8237d360f7e104f266ffbaf63

• bugzilla.mozilla.orgMemory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8https://bugzilla.mozilla.org/buglist.cgi?bug_id=1938471%2C1940716
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-14/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-15/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-16/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-17/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-18/
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/03/10/6
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00006.html