7.8

CVE-2018-7889: calibre-ebook calibre Deserialization of Untrusted Data

CVSS: 7.8v3.0HighModified
AliasesMGASA-2018-0399UBUNTU-CVE-2018-7889DEBIAN-CVE-2018-7889
Published 08-03-2018Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2018-7889 is a high (CVSS 7.8) Deserialization of Untrusted Data vulnerability in calibre-ebook calibre. EPSS estimates a 4.51% chance of exploitation in the next 30 days, higher than 91.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.0 (NVD)
EPSS score
4.51%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 08-03-2018
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

gui2/viewer/bookmarkmanager.py in Calibre 3.18 calls cPickle.load on imported bookmark data, which allows remote attackers to execute arbitrary code via a crafted .pickle file, as demonstrated by Python code that contains an os.system call.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

4.51%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.51% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.51%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.launchpad.net)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Mageia3 products
  • calibre< 3.27.1-2.mga6
  • python-html5-parser< 0.4.4-1.1.mga6
  • python-lxml< 3.8.0-1.1.mga6
Calibre-ebook1 product
Debian1 product
  • calibre< 3.19.0+dfsg-1
Ubuntu1 product
  • calibreAll versions (No fix recorded)

4 vendors · 6 products

References

8 links