7.5

CVE-2024-8900: mozilla firefox

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2024-8900DEBIAN-CVE-2024-8900CGA-5ppw-r5gg-wr28
Published 17-09-2024Last modified 18-03-2025

Vulnerability summary

CVE-2024-8900 is a high (CVSS 7.5) vulnerability in mozilla firefox. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 9

Timeline

  1. 17-09-2024
    PublishedVulnerability first disclosed.
  2. 18-03-2025
    Last modifiedVulnerability information updated.

Description

An attacker could write data to the user's clipboard, bypassing the user prompt, during a certain sequence of navigational events. This vulnerability affects Firefox < 129, Firefox ESR < 128.3, and Thunderbird < 128.3.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

0.00 pp

From 0.43% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mozilla3 products
Chainguard2 products
  • firefox< 129-r0
  • firefox-esr< 129-r0
Debian1 product
  • thunderbird< 1:128.3.0esr-1
Ubuntu1 product
  • firefox< 129.0.1+build1-0ubuntu0.20.04.1
Wolfi1 product
  • firefox< 129-r0

5 vendors · 8 products

References

7 links