CVE-2019-7539: A code injection issue was discovered in ipycache through 2016-05-31.

Q: How do I fix CVE-2019-7539?

ipycache: upgrade to newer than 2016-05-31. Exact commands for each OS are on this page.

Q: Is CVE-2019-7539 being exploited?

CVE-2019-7539 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-7539 affect?

CVE-2019-7539 affects ipycache. Severity is high (CVSS 8.8). A code injection issue was discovered in ipycache through 2016-05-31.

Q: How urgent is CVE-2019-7539?

Priority 55/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2019-7539 is a high-severity flaw (CVSS 8.8) affecting ipycache. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A code injection issue was discovered in ipycache through 2016-05-31.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-502
Published	2019-03-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ipycache project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-03-21 21:29 UTCPublished CVE record published
2026-06-17 02:40 UTCUpdated Record last modified

ipycache project ipycache UPGRADE

Affected: <= 2016-05-31

Fixed in: newer than 2016-05-31

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ipycache || rpm -q ipycache || ipycache --version

2. UPGRADE to newer than 2016-05-31 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ipycache

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ipycache

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-7539?

ipycache: upgrade to newer than 2016-05-31. Exact commands for each OS are on this page.

Is CVE-2019-7539 being exploited?

CVE-2019-7539 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-7539 affect?

CVE-2019-7539 affects ipycache. Severity is high (CVSS 8.8). A code injection issue was discovered in ipycache through 2016-05-31.

How urgent is CVE-2019-7539?

Priority 55/100. High severity; Public exploit reference

References

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