CVE-2024-25713: yyjson through 0.8.0 has a double free, leading to remote code execution in some cases, because the pool_free

Q: How do I fix CVE-2024-25713?

yyjson: upgrade to newer than 0.8.0; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2024-25713 being exploited?

CVE-2024-25713 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-2024-25713 affect?

CVE-2024-25713 affects yyjson, fedora. Severity is high (CVSS 8.6). yyjson through 0.8.0 has a double free, leading to remote code execution in some cases, because the pool_free function lacks loop checks. (pool_free is part of the pool series allocator, along with pool_malloc and pool_realloc.)

Q: How urgent is CVE-2024-25713?

Priority 60/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 8.6REMOTEUPGRADEMITIGATE

CVE-2024-25713 is a high-severity flaw (CVSS 8.6) affecting yyjson, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

yyjson through 0.8.0 has a double free, leading to remote code execution in some cases, because the pool_free function lacks loop checks. (pool_free is part of the pool series allocator, along with pool_malloc and pool_realloc.)

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	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-94
Published	2024-02-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · ibireme

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

Am I affected?

Timeline

2024-02-29 01:44 UTCPublished CVE record published
2026-06-17 07:16 UTCUpdated Record last modified

ibireme yyjson UPGRADE

Affected: <= 0.8.0

Fixed in: newer than 0.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.8.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yyjson

Note

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

fedoraproject fedora MITIGATE

Affected: 38 · 39 · 40

Fixed in: no fixed release known

Safe to downgrade to: a release before 38

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2024-25713?

yyjson: upgrade to newer than 0.8.0; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-25713 being exploited?

CVE-2024-25713 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-2024-25713 affect?

CVE-2024-25713 affects yyjson, fedora. Severity is high (CVSS 8.6). yyjson through 0.8.0 has a double free, leading to remote code execution in some cases, because the pool_free function lacks loop checks. (pool_free is part of the pool series allocator, along with pool_malloc and pool_realloc.)

How urgent is CVE-2024-25713?

Priority 60/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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