7.5

CVE-2015-4487: canonical ubuntu_linux

Modified
AliasesUBUNTU-CVE-2015-4487
Published 16-08-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-4487 is a high (CVSS 7.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.19% chance of exploitation in the next 30 days, higher than 88.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
3.19%
0%100%
Low · -0.63 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 14 · Related 8

Timeline

  1. 16-08-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The nsTSubstring::ReplacePrep function in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 might allow remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, related to an "overflow."

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.19%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

Decrease -0.63 pp

From 3.82% 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

Affected systems

Version check

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

Mozilla2 products
Ubuntu2 products
  • firefox< 40.0+build4-0ubuntu0.14.04.1
  • thunderbird< 1:38.2.0+build1-0ubuntu0.14.04.1
Canonical1 product
Opensuse1 product
Oracle1 product

5 vendors · 7 products

References

26 links
Show all 26 references