7.5

CVE-2018-18513: mozilla thunderbird NULL Pointer Dereference

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-18513DEBIAN-CVE-2018-18513
Published 26-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18513 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in mozilla thunderbird. EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.3% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
1.32%
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 2
DLA-1678-1DSA-4392-1

Timeline

  1. 26-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature. This can be used as a denial-of-service (DOS) attack because Thunderbird reopens the last seen message on restart, triggering the crash again. This vulnerability affects Thunderbird < 60.5.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.32%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

0.00 pp

From 1.32% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.32%

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

Debian1 product
  • thunderbird< 1:60.5.0-1
Mozilla1 product
Ubuntu1 product
  • thunderbird< 1:60.6.1+build2-0ubuntu0.16.04.1 | < 1:60.6.1+build2-0ubuntu0.18.04.1

3 vendors · 3 products

References

6 links