CVE-2019-19847: Libspiro through 20190731 has a stack-based buffer overflow in the spiro_to_bpath0() function in spiro.c.

Q: How do I fix CVE-2019-19847?

libspiro: upgrade to newer than 20190731. Exact commands for each OS are on this page.

Q: Is CVE-2019-19847 being exploited?

CVE-2019-19847 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-2019-19847 affect?

CVE-2019-19847 affects libspiro. Severity is high (CVSS 8.1). Libspiro through 20190731 has a stack-based buffer overflow in the spiro_to_bpath0() function in spiro.c.

Q: How urgent is CVE-2019-19847?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 8.1REMOTEUPGRADE

CVE-2019-19847 is a high-severity flaw (CVSS 8.1) affecting libspiro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Libspiro through 20190731 has a stack-based buffer overflow in the spiro_to_bpath0() function in spiro.c.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-787
Published	2019-12-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: libspiro project

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

Am I affected?

Timeline

2019-12-17 16:15 UTCPublished CVE record published
2026-06-17 02:27 UTCUpdated Record last modified

libspiro project libspiro UPGRADE

Affected: <= 20190731

Fixed in: newer than 20190731

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 20190731 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libspiro

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-2019-19847?

libspiro: upgrade to newer than 20190731. Exact commands for each OS are on this page.

Is CVE-2019-19847 being exploited?

CVE-2019-19847 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-2019-19847 affect?

CVE-2019-19847 affects libspiro. Severity is high (CVSS 8.1). Libspiro through 20190731 has a stack-based buffer overflow in the spiro_to_bpath0() function in spiro.c.

How urgent is CVE-2019-19847?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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