9.8

CVE-2018-12292: palemoon pale_moon Use After Free

Modified
Published 13-06-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-12292 is a critical (CVSS 9.8) Use After Free vulnerability in palemoon pale_moon. EPSS estimates a 8.75% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (exploit-database, 18-06-2018)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
8.75%
0%100%
Low · -0.32 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1exploit-database

Timeline

  1. 13-06-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

8.75%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

Decrease -0.32 pp

From 9.07% 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

1 found
  • exploit-databaselocalwindowsUnverified

    Pale Moon Browser < 27.9.3 - Use After Free (PoC)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

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

Palemoon1 product

1 vendor · 1 product

References

2 links