CVE-2024-56169: A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0

Q: How do I fix CVE-2024-56169?

fort validator: upgrade to newer than 1.6.6. Exact commands for each OS are on this page.

Q: Is CVE-2024-56169 being exploited?

CVE-2024-56169 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-2024-56169 affect?

CVE-2024-56169 affects fort validator. Severity is medium (CVSS 5.3). A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0. RPKI Relying Parties (such as Fort) are supposed to maintain a backup cache of the remote RPKI data. This can be employed as a fallback in case a new fetch fail

Q: How urgent is CVE-2024-56169?

Priority 26/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2024-56169 is a medium-severity flaw (CVSS 5.3) affecting fort validator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0. RPKI Relying Parties (such as Fort) are supposed to maintain a backup cache of the remote RPKI data. This can be employed as a fallback in case a new fetch fails or yields incorrect files. However, the product currently uses its cache merely as a bandwidth saving tool (because fetching is performed through deltas). If a fetch fails midway or yields incorrect files, th

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-354
Published	2024-12-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nicmx

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

Am I affected?

Timeline

2024-12-18 05:15 UTCPublished CVE record published
2026-06-17 08:11 UTCUpdated Record last modified

nicmx fort validator UPGRADE

Affected: <= 1.6.6

Fixed in: newer than 1.6.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy fort-validator || rpm -q fort-validator || fort-validator --version

2. UPGRADE to newer than 1.6.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fort-validator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fort-validator

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-2024-56169?

fort validator: upgrade to newer than 1.6.6. Exact commands for each OS are on this page.

Is CVE-2024-56169 being exploited?

CVE-2024-56169 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-2024-56169 affect?

CVE-2024-56169 affects fort validator. Severity is medium (CVSS 5.3). A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0. RPKI Relying Parties (such as Fort) are supposed to maintain a backup cache of the remote RPKI data. This can be employed as a fallback in case a new fetch fail

How urgent is CVE-2024-56169?

Priority 26/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-56375 HIGH 7.5 DOWNGRADE An integer underflow was discovered in Fort 1.6.3 and 1.6.4 before 1.6.5
CVE-2024-45238 HIGH 7.5 UPGRADE An issue was discovered in Fort before 1.6.3
CVE-2024-45235 HIGH 7.5 UPGRADE An issue was discovered in Fort before 1.6.3

References

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