CVE-2018-7889

Name: CVE-2018-7889
Creator: NVD / NIST
Published: 2018-03-08T21:29:00.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.67%

Last modified Jun 17, 2026

CVE-2018-7889 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.67% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.67%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Calibre-Ebook	Calibre	3.18.0

References

https://bugs.launchpad.net/calibre/+bug/1753870Exploit, Third Party Advisory
https://github.com/kovidgoyal/calibre/commit/aeb5b036a0bf657951756688b3c72bd68b6e4a7dPatch
https://bugs.launchpad.net/calibre/+bug/1753870Exploit, Third Party Advisory
https://github.com/kovidgoyal/calibre/commit/aeb5b036a0bf657951756688b3c72bd68b6e4a7dPatch

Timeline

Published: Mar 8, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-7889?

How severe is CVE-2018-7889?

Severity scoring for CVE-2018-7889 is pending analysis. The EPSS model estimates a 4.67% probability of exploitation in the next 30 days.

How do I fix CVE-2018-7889?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-7889?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST