10

CVE-2015-2731: mozilla firefox

Modified
AliasesUBUNTU-CVE-2015-2731
Published 06-07-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-2731 is a high (CVSS 10.0) vulnerability in mozilla firefox. EPSS estimates a 5.75% chance of exploitation in the next 30 days, higher than 93% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 10, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
5.75%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 4
DSA-3300-1OPENSUSE-SU-2024:10071-1OPENSUSE-SU-2024:10230-1OPENSUSE-SU-2024:14572-1RHSA-2015:1207RHSA-2015:1455

Timeline

  1. 06-07-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Use-after-free vulnerability in the CSPService::ShouldLoad function in the microtask implementation in Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 allows remote attackers to execute arbitrary code by leveraging client-side JavaScript that triggers removal of a DOM object on the basis of a Content Policy.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

5.75%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 5.79% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Mozilla3 products
  • firefox≤ 38.1.0 | 31.0 | 31.1.0 | 31.1.1 | 31.3.0 | 31.5.1 | 31.5.2 | 31.5.3 | 38.0
  • firefox esr31.1 | 31.2 | 31.3 | 31.4 | 31.5 | 31.6.0 | 31.7.0
  • thunderbird≤ 38.0.1
Ubuntu2 products
  • firefox< 39.0+build5-0ubuntu0.14.04.1
  • thunderbird< 1:31.8.0+build1-0ubuntu0.14.04.1
Oracle1 product

3 vendors · 6 products

References

19 links
Show all 19 references